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【单选题】
4 防止杂菌入侵,获得纯净的培养物,是研究和应用微生物的前提.下列叙述错误的是( ) A. 实验室里可以用紫外线或化学药物进行消毒 B. 在实验室中,切不可吃东西、喝水,离开实验室时一定要洗手,以防止被微生物感染 C. 接种环、接种针等金属用具,直接在酒精灯火焰的内焰部位灼烧灭菌 D. 使用后的培养基丢弃前一定要进行灭菌处理,以免污染环境
A.
B.
C.
D.
D
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【简答题】We acknowledgment receipt of your letter dated 26th September_____ connection ______ the above subject. A. for, wit B、for, to C、in, with D、in, to
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【判断题】We shall glad to receive your offer for walnut meat, shipment, during September/October for transshipment at Hongkong.()
A.
正确
B.
错误
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【简答题】开出现金支票2 000元购买厂部办公用品。
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【简答题】We note from your letter of September 10th that you are interested ______ walnut meat.
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【简答题】顽痰胶结者最宜用()
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【单选题】September 11, 2001 is the day ______ we will never forget.
A.
that
B.
when
C.
on which
D.
on that
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【单选题】非弹性阻力主要成分是( )
A.
气道阻力
B.
肺泡表面张力
C.
惯性阻力
D.
黏滞阻力
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【单选题】We learn from the third paragraph that employees in the American PR industry ______.
A.
enjoy reading a great variety of English business publications
B.
speak at least one foreign language fluently
C.
are ignorant about world geography
D.
are not as sophisticated as their European counterparts
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【单选题】We learn from the third paragraph that employees in the American PR industry ______.
A.
enjoy reading a great variety of English business publications
B.
speak at least one foreign language fluently
C.
are ignorant about world geography
D.
are not as cosmopolitan as their European counterparts
查看完整题目与答案
【单选题】If people can follow the secure payment procedures, they needn't worry too much about the security of their online payment.
A.
Y
B.
N
C.
NG
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相关题目：
【简答题】We acknowledgment receipt of your letter dated 26th September_____ connection ______ the above subject. A. for, wit B、for, to C、in, with D、in, to
查看完整题目与答案
【判断题】We shall glad to receive your offer for walnut meat, shipment, during September/October for transshipment at Hongkong.()
A.
正确
B.
错误
查看完整题目与答案
【简答题】开出现金支票2 000元购买厂部办公用品。
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【简答题】We note from your letter of September 10th that you are interested ______ walnut meat.
查看完整题目与答案
【简答题】顽痰胶结者最宜用()
查看完整题目与答案
【单选题】September 11, 2001 is the day ______ we will never forget.
A.
that
B.
when
C.
on which
D.
on that
查看完整题目与答案
【单选题】非弹性阻力主要成分是( )
A.
气道阻力
B.
肺泡表面张力
C.
惯性阻力
D.
黏滞阻力
查看完整题目与答案
【单选题】We learn from the third paragraph that employees in the American PR industry ______.
A.
enjoy reading a great variety of English business publications
B.
speak at least one foreign language fluently
C.
are ignorant about world geography
D.
are not as sophisticated as their European counterparts
查看完整题目与答案
【单选题】We learn from the third paragraph that employees in the American PR industry ______.
A.
enjoy reading a great variety of English business publications
B.
speak at least one foreign language fluently
C.
are ignorant about world geography
D.
are not as cosmopolitan as their European counterparts
查看完整题目与答案
【单选题】If people can follow the secure payment procedures, they needn't worry too much about the security of their online payment.
A.
Y
B.
N
C.
NG
查看完整题目与答案
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