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【单选题】
万能角度尺在50°~140°范围内,( )A.
角尺和直尺
B.
角尺、直尺和夹块
C.
直尺
D.
角尺
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举一反三
【简答题】When
I saw her smiling face, I knew she _____ good news of her husband.A. has B. has had C. had had D. was having
【单选题】当某种行为出现后,给予某种带有强制性、威胁性的不利后果,以期减少这种行为出现的可能性或消除该行为,这种强化方式是( )
A.
正强化
B.
负强化
C.
惩罚
D.
自然消退
【单选题】当某种行为出现后,给予某种带有强制性、威胁性的不利后果，以期减少这种行为出现的可能性或消除该行为,这种强化方式是 。
A.
惩罚
B.
正强化
C.
自然消退
D.
消极强化
【单选题】- Will you please write your note on 'Red Apple' and _____ it to me tomorrow morning? - What about the day after tomorrow? My computer doesn't work well now. [ ]
A.
take
B.
bring
C.
e-mail
D.
give
【单选题】I saw she ______her children to school yesterday morning.
A.
send
B.
sending
C.
to send
D.
sent
【简答题】When I saw her smiling,I knew she (have)good news of her son.
【单选题】When I saw her smiling face, I knew she____good news of her husband.
A.
has
B.
has had
C.
had had
D.
was having
【单选题】— Where is Lily, Lucy? I cannot find her anywhere. — She have been off long. I saw her clean the window just now. [ ]
A.
shouldn't
B.
can't
C.
mustn't
D.
needn't
相关题目：
【单选题】I saw she ______her children to school yesterday morning.
A.
send
B.
sending
C.
to send
D.
sent
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