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【单选题】
Certain drugs inhibit bacterial RNA synthesis. If the DNA strand 5 ′– GCTATGCATCGTGATC GAATTGCGT – 3 ′ serves as a template for the synthesis of RNA, which one of the following choices gives the sequence and polarity of the newly synthesized RNA?
A.
5 ′– ACGCAATTCGATCACGATGCATAGC – 3 ′
B.
5 ′– UGCGUUAAGCUAGUGCUACGUAUCG – 3 ′
C.
5 ′– ACGCAAUUCGAUCACGAUGCAUAGC – 3 ′
D.
5 ′– CGAUACGUAGCACUAGCUUAACGCA – 3 ′
E.
5 ′– GCTATGCATCGTGATCGAATTGCGT – 3 ′
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【单选题】The part of the sentence: his ability to provide competent daytime services 'was compromised' may mean______.
A.
his being unable to provide competent daytime services
B.
his ability to provide competent daytime services was discredited
C.
his qualification as a doctor was suspected
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【单选题】Daytime running lights operate ________.
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Front parking lights
B.
Separate DRL lamps
C.
High beam headlights wired in series
D.
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【多选题】涂料的类别主要有()
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乳液型涂料
C.
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D.
无机高分子涂料
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【单选题】Why did the bird never sing in the daytime? ( )
A.
Because she could only sing in the evening.
B.
Because there was nobody to listen to her.
C.
Because she was caught while singing in the daytime.
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相关题目：
【单选题】不具耐水性的涂料类墙面的清洁保洁作业程序一般为下面四点，那么，耐水性的涂料类墙面的清洁保洁作业程序与其相比较主要是第（）点不同。
A.
用掸子掸掉墙面的灰尘和蜘蛛网，应特别注意对边缘和角落位置的处理
B.
用干毛巾擦墙面上的污渍，若擦不掉则可试用橡皮、细砂纸轻轻擦掉，要注意掌握技巧，否则会留下痕迹
C.
墙面上沾有泥浆、痰迹等凸起的厚污垢，则可尝试用铲刀轻轻铲掉
D.
清洁好因清洁墙面而污染的地面
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【单选题】以下哪一项不是无线信道特有的特征?
A.
传播电磁波
B.
多径效应
C.
隐藏站
D.
能量损耗和传播距离的平方成正比
查看完整题目与答案
【单选题】The part of the sentence: his ability to provide competent daytime services 'was compromised' may mean______.
A.
his being unable to provide competent daytime services
B.
his ability to provide competent daytime services was discredited
C.
his qualification as a doctor was suspected
D.
his NHS practice is no more than a cheat to the patients
查看完整题目与答案
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C.
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D.
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【单选题】The daytime of the summer is longer than _____ of the winter.
A.
it
B.
this
C.
that
D.
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【单选题】The Daytime Running Lights
A.
多反射器卤素前照灯
B.
雾灯
C.
日间运行灯
查看完整题目与答案
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A.
10
B.
12
C.
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D.
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查看完整题目与答案
【单选题】Daytime running lights operate ________.
A.
Front parking lights
B.
Separate DRL lamps
C.
High beam headlights wired in series
D.
Any of the above
查看完整题目与答案
【多选题】涂料的类别主要有()
A.
溶剂型涂料
B.
乳液型涂料
C.
水溶性涂料
D.
无机高分子涂料
查看完整题目与答案
【单选题】Why did the bird never sing in the daytime? ( )
A.
Because she could only sing in the evening.
B.
Because there was nobody to listen to her.
C.
Because she was caught while singing in the daytime.
查看完整题目与答案
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