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【判断题】
多球训练可以增加练习者兴趣,尤其对训练水平较低的初学者,可消除害怕击球失误的紧张心理,也可做休息、健身娱乐的练习。A.
正确
B.
错误
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举一反三
【单选题】There must be many people ______ for the train at the train station because of the snow.
A.
wait
B.
waited
C.
to wait
D.
waiting
【单选题】I ______ the train but I overslept that morning.
A.
could catch
B.
might catch
C.
must have caught
D.
could have caught
【简答题】典型无线传感器网络传输层协议-PSFQ为了保证网络的可靠性,采用了三种机制来确保数据的可靠传输,分别描述一下? {
【单选题】We must run ______ we will miss the first train. [ ]
A.
so
B.
though
C.
otherwise
D.
but
【单选题】They ______ the train to Beijing．Otherwise, they would have returned home．
A.
need have caught
B.
must have caught
C.
must catch
D.
may catch
【单选题】We must ______ early in the morning so as to catch the first train.
A.
set up
B.
set out
C.
set about
D.
set aside
【单选题】My newly-purchased magazine is nowhere to be found. ____ I left it on the train? [ ]
A.
Must
B.
Should
C.
Would
D.
Could
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