To make a living,they are willing to____

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问题选择题

To make a living,they are willing to_________many of the disadvantages of city life such as crime,

heavy traffic , and pollution. [ ]

A. put up

B. put off

C. put up with

D. put away

答案

答案：C

填空题

已知函数F（x）=2^x满足F（x）=g（x）+h（x），且g（x），h（x）分别是R上的偶函数和奇函数，若不等式g（2x）+ah（x）≥0对∀x∈[1，2]恒成立，则实数a的取值范围是______．

单项选择题

慢性肺淤血的X线检查的特征性表现是

A．肺门血管影增强

B．右下肺动脉增宽

C．Kerley B线

D．肺门影呈蝴蝶状

E．肺野大片融合阴影