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【单选题】
旋耕机提升时万向节倾角不能超过( )。A.
±10º
B.
±15º
C.
±20º
D.
±30º
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举一反三
【单选题】On _____ afternoon of last Sunday, I saw some boys play _____ basketball for about two hours. [ ]
A.
the; the
B.
the; /
C.
/; the
D.
/; /
【单选题】I saw the boys _______ football in the gym when I passed by yesterday afternoon. [ ]
A.
play
B.
to play
C.
plays
D.
playing
【单选题】- Did you see the boys yesterday afternoon? - Yes. I saw them ________ the fence when I passed. [ ]
A.
climb
B.
climbed
C.
to climb
D.
climbing
【单选题】在非空线性链表中由p所指结点的入一个由q所指的结点,应依次执行
A.
.q->next=p；p->next=q
B.
q->next=p->next；p->next=q；
C.
q->next=p->next；p=q；
D.
p->next=q；q->next=p；
【简答题】－Where are the boys of Class Five? －I saw them _________basketball on the playground. A. played B .playing C. to play
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