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【单选题】
缺牙区情况的内容不包括
A.
缺牙区间隙大小
B.
牙槽嵴情况
C.
拔牙创愈合情况
D.
对颌牙情况
E.
牙槽嵴有无骨尖、倒凹
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参考答案:
举一反三
【单选题】液压传动是以液体为工作介质,利用液体的( )能来转换和传递能量的传动方式.
A.
B.
压力
C.
机械
D.
【单选题】We believe _______ you have been devoted to ________ naturally of great necessity.
A.
that; being
B.
all that; be
C.
that all; are
D.
what; is
【单选题】液压传动是以液体为工作介质,利用液体的( )来实现能量传递和转换的。
A.
动能
B.
位置势能
C.
压力能
D.
热能
【单选题】姓的出现,是为了
A.
别男女
B.
别婚姻
C.
别父母
D.
别人猿
【判断题】姓的出现是为了 “别婚姻”。
A.
正确
B.
错误
【单选题】All the colour TV sets ____ out before we arrived . [     ]
A.
are sold
B.
have been sold
C.
will be sold
D.
had been sold
【单选题】——Why not stop for a break now? —— _____ .We have been busy working all day and all of us are tired.
A.
I couldn’t agree more
B.
That’s all right
C.
We’d better not.
D.
You’re really right.
【单选题】Most people interviewed said: “We have been warned all about the effects of sunbathing, yet we keep putting ourselves ___ .”
A.
at play
B.
at risk
C.
at peace
D.
at work
【单选题】以液体为工作介质,利用液体的压力能来转换、传递、控制运动及动力的一种传动方式是:
A.
机械传动
B.
液压传动
C.
液体传动
D.
气体传动
【单选题】- Where have you been all day? - We _________ some beautiful children and we couldn’t get away from them until it was dark.
A.
meet
B.
have been met
C.
met
D.
have been meeting
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