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【单选题】
下列不属于上皮组织的结构特点的是A.
上皮细胞具有明显的极性
B.
上皮细胞有游离面和基底面
C.
上皮组织内有血管
D.
有丰富的感觉神经末梢
E.
细胞多,细胞间质少
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举一反三
【单选题】If you comment __something ,you give your opinion s about it or explanations for it.
A.
Upon
B.
About
C.
To
D.
On
【单选题】F: Bob, did you contact technical support about my computer? I’m working on an important presentation, and all my work is on that computer.M: Yes, I called them. They told me they’d send someone over ...
A.
Call the supervisor
B.
Buy a new computer
C.
Cancel the meeting
D.
Sign a contract
【单选题】It is such a small point that it ’ s hardly worth about.
A.
to be troubled
B.
to trouble
C.
troubling
D.
being troubled
【单选题】F: Bob, did you contact technical support about my computer? I’m working on an important presentation, and all my work is on that computer.M: Yes, I called them. They told me they’d send someone over ...
A.
Discussing the tender documents
B.
Having a business dinner
C.
Promoting their company
D.
Demonstrating her new model
【单选题】It s only about ten ____ walk to the nearest post office
A.
It’s only about ten ____ walk to the nearest post office A.minutes
B.
minute’s
C.
minutes’
D.
minute
【单选题】—_______? —It ' s about 40 minutes by bike.
A.
How tall is it
B.
How long is it
C.
How far is it
D.
How much is it
【单选题】) — How far is it from Chongqing to Guiyang? — It ’ s about two ride by high-speed train .
A.
hour
B.
hour ’ s
C.
hou rs
D.
hours ’
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