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【单选题】
蛋白质测定消化时,凯氏烧瓶应( )放在电炉上进行消化。A.
与电炉垂直
B.
与电炉垂直且高于电炉2厘米的地方
C.
倾斜约45度角
D.
与电炉平行
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举一反三
【单选题】Even if______,I will not go to the party, for I am too busy to get away.
A.
inviting
B.
invited
C.
have been invited
D.
invite
【单选题】I will not go to the party even if ________.
A.
inviting
B.
being invited
C.
invited
D.
having invited
【单选题】Unless ______, I will not go to the party.
A.
being invited
B.
invited
C.
inviting
D.
having invited
【单选题】If it ______ rain tomorrow, I will go to the park. [ ]
A.
not
B.
will not
C.
is not
D.
does not
【单选题】依据我国专利法的规定,申请专利的发明创造在申请日以前6个月内,不丧失新颖性的情形是( )
A.
在展览会上首次展出
B.
录制在磁带上出版
C.
在报纸上刊登销售产品的广告
D.
在规定的学术会议上首次发表
【单选题】I will not go to the cinema with you because my homework ________. You’d better ask Daniel instead.
A.
is finished
B.
has finished
C.
hasn’t finished
D.
hasn’t been finished
【单选题】I will not go to the concert because I ____ my ticket.
A.
lost
B.
didn't lose
C.
have lost
D.
is losing
【单选题】— H7N9 is so serious that I will not go to the supermarket these weekends. — ______________ Why not just stay at home and watch TV?
A.
So I will.
B.
So will I.
C.
Neither will I.
【简答题】起动后自动脱开;起动机电路的通断则由一个____来控制。其中,电动机是起动机内部的主要部件。
相关题目：
【单选题】If it ______ rain tomorrow, I will go to the park. [ ]
A.
not
B.
will not
C.
is not
D.
does not
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