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【简答题】
在老鼠的A和B位点间有24%互换,为检查这两个位点间的交叉记录了150个初级卵母细胞,在这两个基因间期望这些细胞有 个会形成交叉
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举一反三
【单选题】已知某化学反应是放热反应,如果升高温度,则对反应的反应速率系数k和标准平衡常数KӨ的影响将是
A.
k 增加, K Ө 增加
B.
k 增加, K Ө 减小
C.
k 减小, K Ө 增加
D.
k 减小, K Ө 减小
【多选题】二、关于人工办理进路说法正确的有?
A.
眼看、手指、口呼,查看道岔整体结构、道岔开通位置、尖轨密贴、缝隙异物,判断道岔位置是否正确。
B.
双机牵引道岔先对第二牵引点断电,再对第一牵引点断电情况确认。
C.
手摇把摇动方向正确,将道岔摇至正确位置,听到落槽声后停止摇动,及时取出手摇把。
D.
收拾备品,检查辅操员加锁是否牢固。
【单选题】已知某化学反应是吸热反应,如果升高温度,则对反应的反应速率系数 k 和标准平衡常数 K Ө 的影响是
A.
k 增加, K Ө 减小
B.
k 、 K Ө 均增加
C.
k 减小, K Ө 增加
D.
k 、 K Ө 均减小
【单选题】Topic sentence:I easily give up doing my homework. F.Often , in the middle of an assignment , I decide that my shoes need polishing and do that instead of the assignment in front of me.
A.
I always start to feel hungry and go into the kitchen for a snack.
B.
I’ ll leave my studying to investigate any noise I hear.
C.
While I study,I try to listen to the radio with one ear.
D.
For me,physics is the hardest subject.
【单选题】以下哪项不是新入职的员工要积极主动做的事情( )。
A.
收拾垃圾,烟灰缸,纸杯
B.
接待室等要进行整理,桌子上面要擦干净等
C.
细心地检查复印纸、信封等消耗品是否用完,要及时填充
D.
好好化妆,见同事和老板
【判断题】我们做人看人,主要是看本质,不能在意表面现象。
A.
正确
B.
错误
【多选题】Below is a sentence from Shakespeare’s Hamlet , “If your messenger find him not there, seek him i’ the other place yourself.” This sentence reflects the change in ________ in modern English.
A.
agreement rule
B.
negation rule
C.
process of simplification
D.
sounds
【多选题】Which of the following sentences are included in replies of the sentence—“How are you?” ?
A.
I am fine.
B.
Just so-so.
C.
Not very well, I’ m afraid.
D.
How do you do?
【单选题】汽车发电机主要由( )、端盖和电刷总成组成
A.
转子总成
B.
定子总成
C.
硅整流器
D.
以上皆是
【单选题】Choose the best topic sentence. (Topic sentence missing) M y car always smells like exhaust fumes (废气) . I’ ve had two flat tires (扁胎) this year. S ometimes it won ’ t even start (启动) in the morning.
A.
My car smells, has flat tire and won ’ t start.
B.
So it ’ s a time to get a new car.
C.
I have a lot of trouble with my car.
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