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【单选题】
体重低于标准体重多少称为消瘦A.
5%
B.
10%
C.
15%
D.
20%
E.
25%
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反馈参考答案：
举一反三
【单选题】-I'm sorry I'm late again But I…． -It's 'no use_______. It's the third time that You came late this week
A.
complain
B.
complained
C.
to complain
D.
complaining
【简答题】Listen to the record and choose the best answer.
【单选题】－I'm sorry I'm late. I got held up in the traffic on my way here. － _____. [ ]
A.
Don't be late next time
B.
You should be blamed
C.
It doesn't matter, I'm also late
D.
Never mind. Come and sit down
【简答题】__I’m sorry I’m late. I got held up in the traffic on my way here. － _______ . A.Don’t be late next time B.You should be blamed C.It doesn’t matter, I’m also late D.Never mind. Come and sit down
【简答题】图示两个结构相同相互串联的液压缸,无杆腔的面积 A 1 = 100cm 2 ,有杆腔面积 A 2 = 80cm 2 ,缸 1 输入压力 p 1 = 9 × 10 5 Pa ,输入流量 q 1 = 12L/min ,不计损失和泄漏,求: 1) 两缸承受相同负载时 ( F 1 = F 2 ) ,该负载的数值及两缸的运动速度; 2) 缸 2 的输入压力是缸 1 的一半时 ( p 2 = p 1 / 2)...
【简答题】Listen to the record and choose the best answer.
【单选题】----I’m sorry. I’m late for the music presentation. --- Why are you so late? The presentation _______ for 10 minutes.
A.
has begun
B.
has stopped
C.
has been over
D.
has finished
【简答题】Listen to the record and fill the blanks
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