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【单选题】
Don ’ t blame him. ______, he is a child.
A.
Above all
B.
In all
C.
After all
D.
For all
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【判断题】雨天行车制动时,车轮很容易抱死滑拖,这是由于地面制动很大。
A.
正确
B.
错误
【简答题】根据短文内容和首字母提示,把所缺单词填写在短文后面相应的横线上,使句意完整。 It's very important for us to keep (1)h______ in our everyday life. Here is some (2)a______ for you. First, you should have healthy diet. Different food helps us...
【单选题】当血乳酸的含量超过4毫克分子/升左右所对应的工作强度时,血乳酸浓度将()。
A.
急剧增加
B.
急剧下降
C.
不变
【单选题】开环控制系统一般为( )。
A.
点位控制系统
B.
直线控制系统
C.
轮廓控制系统
D.
步进驱动系统
【单选题】In the U.S., it's ( ) for children to get smallpox shots because the disease no longer exists today.
A.
required
B.
important
C.
unnecesary
【简答题】投影分为两类: 和 。
【单选题】It's important for the figures ________ regularly. [     ]
A.
to be updated
B.
to have been updated
C.
to update
D.
to have updated
【简答题】根据句意和首字母提示完成句子。 1. I have a toothache, I have to see a d _____ _. 2. —What's the matter with you? —I have a s ______ throat. 3. It's important for us to have a healthy lifestyle, to eat a b ______ die...
【判断题】过程控制系统一般为开环系统
A.
正确
B.
错误
【判断题】某种产品的替代品数目越多,其需求价格弹性越大。
A.
正确
B.
错误
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