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【多选题】
蓄能器的作用是( )A.
作辅助动力源
B.
系统保压或作紧急动力源
C.
储油、散热
D.
吸收系统脉动，缓和液压冲击
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举一反三
【单选题】--- _____ does your father usually go to work? ---By car.
A.
How
B.
What
C.
How often
【单选题】张 大伯 , 60岁,昏迷,为补充营养给予鼻饲饮食,下列护理措施中不正确 的 是
A.
插管时动作要轻柔
B.
每次鼻饲量不超过 500ml
C.
每天协助病人做好口腔护理
D.
两次鼻饲的间隔时间不少于 2小时
E.
每次鼻饲完毕注入少量温开水
【单选题】— does your grandfather go fishing? —On Saturday. [ ]
A.
How long
B.
How often
C.
How
D.
When
【单选题】— ? —She often takes a walk after dinner. [ ]
A.
What does your mother do
B.
How does your mother relax
C.
What is your mother doing
D.
Where is your mother going
【单选题】-- does your cousin go to the gym? -- Twice a week.
A.
How long
B.
How often
C.
How soon
【单选题】--- does your sister go skateboarding? --- Every day.
A.
How long
B.
How many
C.
How much
D.
How often
【单选题】—________does your father paly tennis after work? —Every Tuesday and Thursday.
A.
How often
B.
How soon
C.
How long
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