题目内容

若地面上的噪声源厂界与居民住宅相连，厂界噪声无法测量时，测点应选在居民居室中央，测量时应打开门窗室内限值应比相应标准值低10dB（A）。

A. 对
B. 错

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建筑施工噪声测量期间，只要各施工机械处于正常运转状态即可，不应包括不断进入或离开场地的车辆。

A. 对
B. 错

The 32P is added at the 3’ end by polynucleotidyl kinase____________

A.True
B.False

Which enzyme is used for the replication in case of Sanger’s method of sequencing? ____________

A.Polymerase I
B.Smaller subunit polymerase I
C.Polymerase III
D.Larger subunit polymerase I

With respect to Sanger’s method of sequencing, pick the odd one out. ____________

A.Radioactive dideoxyribonucleotides
B.Primers
C. Klenow fragment
D.Restriction digestion