长期家庭氧疗是指（）。 A.高流量给氧，每日吸氧时间>15小时 B

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问题单项选择题 A1/A2型题

长期家庭氧疗是指（）。

A.高流量给氧，每日吸氧时间>15小时

B.低流量给氧，每日吸氧时间>15小时

C.低流量给氧，每日吸氧时间<15小时

D.高流量给氧，持续24小时

E.低流量给氧，持续24小时

答案

参考答案：B

填空题

却词填空。

John likes chocolates very much, but his mother thinks they are bad for his t 1 . However, his

grandpa loves his grandson very much, so he buys John some. Then his mother l 2 him eat them

because she wants to make the old man h 3 .

On Saturday evening, it’s John’s seventh birthday. He says, “Please, God, make them give me a

big box of chocolates f 4 my birthday.” His mother says, “God can’t h 5 you. Don’t shout.”

"No. I know he will help me because he is in the n 6 room now.” says the clever boy with a

smile.

多项选择题

（）安装地点应慎重选择，必须确保工作人员能清楚地看见重物的起吊位置。

A.刹车装置

B.限制器

C.卷扬机（手摇式和电动式）

D.绞盘（绞磨）