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【单选题】
胸外心脏按压时,错误的是A.
两手掌根重叠
B.
以髋关节为支点,利用肩膀的力量垂直下压
C.
腕、肘、肩关节绷成一条直线,无弯曲
D.
要保证每次按压后胸廓完全回弹
E.
要尽量减少胸外按压中断,或尽可能将中断控制在10秒钟以内
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【单选题】There are fifty students in our class, _____ of the boys _____ football.
A.
two third; likes
B.
two thirds; like
C.
two thirds; likes
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A.
two of which
B.
both of which
C.
both of them
D.
all of them
【单选题】There are fifty students in our class. of us football. [ ]
A.
Two third; likes
B.
Two three; like
C.
Two thirds; likes
D.
Two thirds; like
【单选题】There are fifty-two staff in our company,__________are women.
A.
two-fifth of whom
B.
second-fives of whom
C.
two-fifths of whom
D.
two-five of whom
【简答题】阅读理解 Look! This is a picture of our classroom. There are fifty desks an d chairs in it. They are for students. On the desks are our books. There is also a big desk in the classroom. It’s for our ...
【单选题】There are fifty students in our class, _____ of us _____ football.
A.
two third; likes
B.
two three; like
C.
two thirds; likes
D.
two thirds; like
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