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【单选题】
游客被毒蛇咬伤后，导游员可用小刀按毒牙痕的方向切纵横各()厘米的十字形口，再设法把毒素吸出或挤出，导游员口腔溃疡不可实施。A.
0.5
B.
1
C.
1.5
D.
2
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举一反三
【单选题】His speech made me _________ in modern music.
A.
interested
B.
to interest
C.
interesting
D.
interest
【单选题】As far as I am concerned,what he made in his speech is just a(n)__________,nothing serious. [ ]
A.
choice
B.
excuse
C.
statement
D.
slip
【判断题】In his speech made at the beginning of a new semester, Obama employed the strategy "referring to historical event" to start his speech.
A.
正确
B.
错误
【简答题】营养物质通过渗透方式进入微生物细胞膜的方式有______、______、______和______等四种。
【单选题】Not until the meeting was over（）that he had made a mistake in his speech.
A.
he realized
B.
did he realize
C.
hehas realized
D.
has he realized
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