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【判断题】
( )增大副偏角,可以减少工件表面粗糙A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】摩尔法测定Cl-含量时,要求介质的pH在6.5 ~ 10.0范围内,若酸度过高,则 ( )
A.
AgCl沉淀不完全；
B.
AgCl沉淀易胶溶；形成溶胶
C.
AgCl沉淀吸附Cl－增强；
D.
Ag2CrO4沉淀不易形成；
【简答题】I was asked to give a short ______________ on the aims of the plan.
【单选题】She had made ______ many mistakes in the article that I didn't know what she wanted to tell us.
A.
so
B.
such
C.
enough
D.
at
【简答题】The plan, short, was to persuade the management to provide better working conditions.
【单选题】Speaker A: Your suitcase seems very heavy. Need any help? Speaker B: ______
A.
It’s my pleasure.
B.
No, thanks. I can manage it myself.
C.
That all depends!
【单选题】She wanted me to know that she still cared for me
A.
worried
B.
believed
C.
loved
D.
relied
【多选题】关于真核生物的转录，叙述正确的是
A.
RNA聚合酶II转录蛋白质基因，RNA聚合酶I转录tRNA基因
B.
II类基因启动子功能的实现需要TFII的协助
C.
RNA聚合酶II的CTD磷酸化参与了转录中启动子逃离，延伸，终止以及pre-mRNA加工等各个环节
D.
真核基因转录的终止与Poly A的添加是偶联发生的
【单选题】— Your suitcase seems very heavy. Need any help? — ________
A.
That all depends!
B.
No, thanks. I can manage it myself.
C.
It’s a pleasure.
D.
It couldn’t be better. Thank you all the same.
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