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问题 选择题

若集合A={x|1≤x≤3}，B={x|x＞2}，则A∩B等于[ ]

A．{x|2＜x≤3}

B．{x|x≥1}

C．{x|2≤x＜3}

D．{x|x＞2}

答案

答案：A

单项选择题

行车中出现制动拖滞，若各轮制动鼓均过热，表明（）有故障。

A.制动分泵

B.制动总泵

C.制动器

D.制动活塞
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单项选择题

·Look at the questions for this part.
·You will hear a passage about "American Weighs In ". You will listen to it twice.
·For questions 24-30, indicate which of the alternatives A, B, or C is the most appropriate response.
·Mark one letter A, B, or C on the Answer Sheet.

Compared to the late 1970s, the percent of children aged 12 to 17 who were overweight in 1994 ______.

A．decreased

B．remained unchanged

C．increased
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