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【单选题】
微生物的五大特性的基础是A.
体积小，面积大
B.
吸收多，转化快
C.
适应强，易变异
D.
分布广，种类多
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【简答题】When I was a child, I often dreamed of the time when I could leave home and escape to the city. We lived on a farmstead, in the winter especially, we wear quite out off from the outside world. As soon...
【简答题】When I was a child, I often dreamed of the time when I could leave home and escape to the city. We lived on a farm and, in the winter especially, we were quite cut off from the outside world. As soon ...
【简答题】Complete the sentence with a formal word which has the same meaning as the phrasal verb in the brackets.Over the course of the next twelve months this trend is likely to ________(speed up).
【判断题】主轴电动机 M1 不能停车 造成这种故障的原因多是接触器 KM 的主触头熔焊;停止按钮 SB1 击穿或线路中 5 、 6 两点连接导线短路;接触器铁心表面粘牢污垢。可采用下列方法判明是哪种原因造成电动机 M1 不能停车:若断开 QF ,接触器 KM 释放,则说明故障为 SB1 击穿或导线短接;若接触器过一段时间释放,则故障为铁心表面粘牢污垢;若断开 QF ,接触器 KM 不释放,则故障为主触头熔焊...
A.
正确
B.
错误
【简答题】I have always been interested in things. When I was a child, I enjoyed painting, but I also liked malting things out of day. I won a prize for one of my paintings when I was four. That may ...
【简答题】E-Commerce wa first______(develop) in hte 1960s.
【单选题】Of course, the trend today is to use computers since the process is often ( repetitive) and complex, and computers greatly simplify the task
A.
intermittent
B.
repetitious
C.
replaceable
D.
tedious
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