已知SO₂水溶液在三种温度t₁、t₂、t₃下的亨利系数分别为E₁=0.0035atm、E₂=0.011atm、E₃=0.00625atm,则()。
A.t₁<t₂
B.t₃>t₂
C.t₁>t₂
D.t₃<t₁
A.t₁<t₂
B.t₃>t₂
C.t₁>t₂
D.t₃<t₁
第2题
"Will he be able to win the championship?"
A.I don't fear so
B.I don't guess so
C.I don't hope so
D.I don't think so
第4题
She is so ______ that she doesn't even know where Beijing is.
A.foolish
B.competent
C.innocent
D.ignorant
第5题
A.With
B.Since
C.For
D.As
第7题
She wasn't feeling very well; otherwise, she ______the meeting so early.
A.wouldn't leave
B.wouldn't have left
C.didn't leave
D.hadn't left
第8题
______ in this way, the situation doesn't seem so disappointing.
A.To look at
B.Looking at
C.Looked at
D.Look at
第9题
We could have walked to the station. It was so near. A taxi______at all necessary.
A.wasn"t
B.hadn"t been
C.couldn"t be
D.wouldn"t be