皮皮学，免费搜题
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【单选题】
在检测可溶性黏附分子中，ELISA常用A.
直接法
B.
间接法
C.
夹心法
D.
竞争法
E.
组化法
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】--- I need to advertise for a roommate for next term. --- _____? Mary is interested.
A.
Why bother
B.
Why not
C.
So what
D.
What for
【单选题】Why does the professor say this:
A.
She thinks that the spelling of the term is not important.
B.
She assumes that the students know how to spell the term.
C.
She knows that the term can be found in the textbook.
D.
She does not want to spend time explaining the term.
【简答题】The reason why the ytical and explanatory value of the term globalization was largely emptied is that ______.
【单选题】Man: Hurry, there is a bus coming. Woman: Why run? There will be another one in two or three minutes. Question: What does the woman mean?
A.
The next bus is coming soon.
B.
The bus will wait a few minutes at the stop.
C.
There are only two or three passengers waiting for the bus.
D.
They can catch this bus without running.
【多选题】在绿篱机操作过程中易出现的错误有哪些
A.
拉启动绳距离短，且频率高
B.
开关没打开，就在启动机器
C.
在启动机器时，没有用手按紧机器，两手没有配合好
D.
启动前没有加注润滑脂
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