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【判断题】
在二次接线回路上工作，无需将高压设备停电A.
正确
B.
错误
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举一反三
【单选题】病人,女性,25岁。连续3天测得的血压为80/50mmHg,该病人的血压属于
A.
低血压
B.
正常血压
C.
临界低血压
D.
收缩压正常,舒张压降低
E.
收缩压降低舒张压正
【简答题】已知全集U=R，函数y= 的定义域为A，函数y= 的定义域为B， （1）求集合A、B； （2）（C U A）∪（C U B）。
【简答题】At the age of seven, I went to see my grandma in Warwick and spent the summer with her. One day I went to a general store with a 34 full of what Grandma needed. “Excuse me, I need to 35 these,” I said...
【简答题】完形填空。 One summer in college, I was invited to be an instructor at a high school leadership camp. I first 1 a boy under the tree on the first day of camp. His obvious 2 and shyness made him appear weak...
【简答题】One day last summer, watching the boys and girls trying to catch butterflies I remembered something happened when I was young．When I was a boy of 12 in South Carolina, something happened to me that cu...
【单选题】One summer evening I was sitting by the open window, reading a good science storybook. (79)I was so interested in the story I was reading that I did not notice that it was getting dark. When I realize...
A.
it was getting dark.
B.
it was too dark for him to read easily outside.
C.
he didn't mm on the light.
D.
none of the above
【单选题】病人,女性,25岁。连续3天测得的血压为80/
A.
mmHg,该病人的血压属于
B.
低血压
C.
正常血压
D.
临界低血压
E.
收缩压正常,舒张压降低
F.
收缩压降低,舒张压正常
【简答题】函数y = 的定义域是 .
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