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【单选题】
已知全集U=R,集合A={x|y= },B={x|x>4},则A∩(∁ U B)等于( )
A.
[2,4]
B.
[2,4)
C.
R
D.
{2,3,4}
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参考答案:
举一反三
【判断题】标注角度尺寸时,尺寸线应是圆弧线,圆弧的圆心可任选。
A.
正确
B.
错误
【单选题】Task 1 Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 through 40. For each question or statement there are 4 choices marked A, B, C, a...
A.
convenient
B.
fashionable
C.
traditional
D.
reliable
【判断题】标注角度尺寸时,尺寸线应是圆弧线,圆弧的圆心可任选
A.
正确
B.
错误
【单选题】要判定一个机构有无死点位置,就看它的(        )是否共线。
A.
从动件与连杆
B.
从动件与机架
C.
连杆与机架
D.
曲柄与摇杆
【单选题】标注角度时,角度的尺寸线应以圆弧表示。该圆弧的圆心应是该角的顶点,角的两条边为尺寸界线。 起止符号应以箭头表示,角度数字应沿( )方向注写。
A.
水平
B.
竖直
C.
尺寸线
D.
45°
【判断题】After reading the e-mail telling her illness, the author completely believed her words.
A.
正确
B.
错误
【单选题】Task 1 Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 through 40. For each question or statement there are 4 choices marked A, B, C, a...
A.
It' s a composition one.
B.
It' s a conversational one.
C.
It' s for listening skill.
D.
It' s a grammar one.
【单选题】Task 1 Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 through 40. For each question or statement there are 4 choices marked A, B, C, a...
A.
he cured the blindness of the daughter of the prison door-keeper
B.
he illegally taught people to believe in Christian Gods
C.
he married couples secretly
D.
he went contrary to the Roman emperors
【单选题】革兰阴性菌细胞壁不具有的成分是
A.
黏肽
B.
脂多糖
C.
磷壁酸
D.
外膜
【判断题】自古以来就是“男主外女主内”,很难改变。
A.
正确
B.
错误
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