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【单选题】
RNA通常是A.
线性双链分子
B.
环状单链分子
C.
线性单链分子
D.
环状双链分子
E.
以上都不对
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反馈参考答案：
举一反三
【单选题】( )4.-Excuse me.Which is the way to the post office? -Sorry.I am new here. -
A.
I think so.
B.
Bad luck.
C.
That's true.
D.
Thank you all the same.
【简答题】（15）以太网帧数据字段的最大长度是 A）1518字节 B）1500字节 C）1024字节 D）1000字节
【单选题】"Excuse me. which movie are you waiting for? “The new Star Wars. We ______ here for more than two hours.”
A.
Waited
B.
wait
C.
would be waiting
D.
have been waiting
【单选题】- -Excuse me. Which is the way to the nearest park? ---- You may ask the policeman over there.
A.
.I'm not afraid I can't.
B.
.I' ve no idea.
C.
.I' m afraid I can't.
D.
Of course.
【单选题】—Excuse me. Which is the way to the police station? —Sorry, I'm new here. _______. [ ]
A.
Nothing serious.
B.
Good luck.
C.
Thank you all the same.
D.
Pleased to hear that.
【单选题】-- Excuse me. Which carriage is this? --______________.
A.
This is Platform 8.
B.
This is the ticket office.
C.
This is Carriage No.2.
D.
This is the dinning car.
【单选题】—Excuse me. Which is the way ______ the post office, please? —Sorry, I don't know. You can ask the policeman _______ help. [ ]
A.
to; to
B.
to; for
C.
for; for
D.
for; to
【单选题】---Excuse me. Which is the way to the post iffice? --- Sorry. I am new here. --- .
A.
I think so
B.
Bad luck
C.
Thank you all the same
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