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[主观题]

元组变量t=(“cat”,“dog”,“tiger”,“human”),t[::-1]的结果是()。

A.{‘human’,‘tiger’,‘dog’,‘cat’}

B.[‘human’,‘tiger’,‘dog’,‘cat’]

C.运行出错

D.(‘human’,‘tiger’,‘dog’,‘cat’)

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更多“元组变量t=(“cat”,“dog”,“tiger”,“human”),t[::-1]的结果是()。”相关的问题

第1题

Dog and cat are subordinates of livestock.()
Dog and cat are subordinates of livestock.()

A、正确

B、错误

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第2题

________ refers to a specific-general semantic relationship between lexical items. Dog and cat are subordinates of livestock.

A.Meronymy

B.Hyponymy

C.Polysemy

D.Antonymy

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第3题

There is almost nothing that his dog won't eat.
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第4题

_____ I tell you yesterday not to touch that dog?
_____ I tell you yesterday not to touch that dog?

A.Haven’t

B.Hasn’t

C.Didn’t

D.Aren’t

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第5题

Have a look at Paragraphs 11 to 13 to find out the comparisons made between people who live with oth
ers and those who live alone. Then fill out the chart below.

Paras. 11-13

If you live with other people, their temporary absence can be refreshing. Solitude will end on Thursday. If today I use a singular personal pronoun to refer to myself, next week I will use the plural form. While the others are absent you can stretch out your soul until it fills up the whole room, and use your freedom, coming and going as you please without apology, staying up late to read, soaking in the bath, eating a whole pint of ice cream at one sitting, moving at your own pace. Those absent will be back. Their waterproof winter coats are in the closet and the dog keeps watching for them at the window. But when you live alone, the temporary absence of your friends and acquaintances leaves a vacuum; they may never come back.

The condition of loneliness rises and falls, but the need to talk goes on forever. It's more basic than needing to listen. Oh, we all have friends we can tell important things to, people we can call to say we lost our job or fell on a slippery floor and broke our arm. It's the daily succession of small complaints and observations and opinions that backs up and chokes us. We can't really call a friend to say we got a parcel from our sister, or it's getting dark earlier now, or we don't trust that new Supreme Court justice.

Scientific surveys show that we who live alone talk at length to ourselves and our pets and the television. We ask the cat whether we should wear the blue suit or the yellow dress. We ask the parrot if we should prepare steak, or noodles, for dinner. We argue with ourselves over who is the greater sportsman: that figure skater or this skier. There's nothing wrong with this. It's good for us, and a lot less embarrassing than the woman in front of us in line at the market who's telling the cashier that her niece Melissa may be coming to visit on Saturday, and Melissa is very fond of hot chocolate, which is why she bought the powdered hot chocolate mix, though she never drinks it herself.

If you live with other people, ________________________. (Para. 11)

When you live alone: ________________________. (Para. 11)

Supporting details: We need to talk to others. ________________________. (Para. 12)

Supporting details: People who live alone will behave ridiculously: ________________________. (Para. 13)

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第6题

- May I play with my dog?-I’m afraid not.You can’t play with it ______ you finish your homework.

A.when

B.until

C.after

D.because

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第7题

In the sentence "Maybe he doesn't see it himself." (Para. 2), "it" refers to______.A.being

In the sentence "Maybe he doesn't see it himself." (Para. 2), "it" refers to______.

A.being friendly

B.a bit of envy

C.lucky dog

D.your luck

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第8题

二维表中的行称为元组。()
二维表中的行称为元组。()

T、对

F、错

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第9题

通过“max(t)”可以得到元组t中最大元素的值。()
通过“max(t)”可以得到元组t中最大元素的值。()

A.正确

B.错误

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第10题

通过“maxt”可以得到元组t中最大元素的值。()
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第11题

设关系R和关系S的元组个数分别为3和4,关系T是R与S的广义笛卡尔积,即TRxS,则关系T的元组个数是()。

A.9

B.7

C.16

D.12

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