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[主观题]

Before adhesion can take place between liquid and solid,it is essential that the liquid su

rface()

A．provides some mechanical interlocking with the solid

B．exhibits a large contact angle with the solid

C．enters into some form. ofchemieal reaction with the solid

D．exhibits a small contact angle with the solid

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发布时间：2022-12-02

更多“Before adhesion can take place between liquid and solid,it is essential that the liquid su”相关的问题

第1题

We must make some investigations___we can draw any conclusion.

A.since

B.before

C.until

D.when

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第2题

From the passage we may infer that______.A．getting up before the sun rises can help people

From the passage we may infer that______.

A．getting up before the sun rises can help people out of crime

B．loving can help young people to a new life

C．travelling can help all criminals out of prison

D．being brave and strong can do with crime

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第3题

What can we infer from this passage？A．A dog may find its owner's disease even before docto

What can we infer from this passage？

A．A dog may find its owner's disease even before doctors.

B．Walking a dog every day will make it more sensitive.

C．Humans may turn to a dog for a discovery about the earth.

D．Humans should find more of a dog before it is too late.

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第4题

We can infer from the passage that ______.A．Nadia did not like KateB．Nadia had lived by th

We can infer from the passage that ______.

A．Nadia did not like Kate

B．Nadia had lived by the sea before

C．Nadia had never seen a computer before

D．Nadia spoke in a soft voice out of politeness

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第5题

If you miss the bus on the city loop at 9:00 a.m., you have to wait______minutes before yo

u can catch the next one.

A．30

B．35

C．45

D．60

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第6题

I saw an ad for a device that allows your dog to talk to you. Bow Lingual, a Japanese inve

ntion, entered the American market a couple of weeks ago. Named " The Dog Translator," it sold more than 250,000 units before heading here. And dont forget that it was sold at the price of $ 120 each. Its quite simple, really. A radio microphone attaches to your dog s collar, and a handheld receiver "translates" barks into 200 different phrases. The device determines your dogs emotion at the moment: happy, sad, frustrated, on-guard, assertive and needy. (In case you have a dog that barks only in Japanese or Korean, it comes with those translations, too.) As interesting as this new device is—again, I m kicking myself here—any dog owner worth his Milk-Bones knows this might not be all that necessary a purchase. Our dog, Murphy, for instance, has never had any problem whatsoever communicating with us. Not once in 13 years. Odd as it seems, we can figure out quite quickly what s on her mind. Just the cock of her head will often do it. Translation: " Surely you re taking me with you." Sometimes it s a solitary bark at the kitchen door after dinner. Translation: " You forgot my treat, Buster!" And sometimes its 100 barks in a row. Translation: "The mailman is here! The mailman is here! Cant you hear him attacking our house？" But I think I witnessed the ultimate dog communication technique years ago. It was a neighbor s dog. I cant remember the breed or name. All I remember is how bright she was. She had no need for Bow Lingual. Whenever frustrated with her family, which appeared to be quite often, she would stroll into the living room, turn her back to them and sit directly in front of the TV they were watching. And pee. No translation needed. And you need not be smart or rich to figure that out.

We can infer from the passage that sale of "The Dog Translator" in Japan______.

A．was considered a failure

B．was quite successful

C．was relatively satisfactory

D．was relatively unsatisfactory

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第7题

We had met on a ____ occasion.

A.before

B.present

C.previous

D.pretentious