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【单选题】
核酸电泳过程中，核酸分子的移动方向A.
正极向负极移动
B.
负极向正极移动
C.
自下而上移动
D.
自动移动
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反馈参考答案：
举一反三
【单选题】听力原文：M: I’d like to take a trip for my long vacation, but I am not quite sure where to go. W: I suggest you go to Yunnan province. My friends were so much impressed by the great scene of the snow moun...
A.
Korean Disney Land.
B.
The beauty of Dalian.
C.
What to prepare for a trip.
D.
Where to go for the vacation.
【单选题】---Look! There is beautiful rainbow in the sky． ---Wow, it’s so beautiful. I’d like to take a photo of rainbow before it disappears．
A.
a; the
B.
the; a
C.
the; the
D.
a; a
【简答题】成本会计的对象是指成本会计 和 的内容
【单选题】— We need a room for tonight, and I’d like to take a chance to check in without reservation. — Don’t you know about the jammed hotels in this season? ______.
A.
Better play it safe
B.
Do as you please
C.
No problem
D.
Think nothing of it
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