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【单选题】
则天统治时期,有一个姓 张的普通人家的儿子想做官,以光宗耀祖。那么,可供他选择的途径有 1勤练武功,参加武举 2读书 参加 科举 3经商 4练习诗赋
A.
②④
B.
③④
C.
①②
D.
①③
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参考答案:
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【单选题】在反应4NH 3 +5O 2 ═4M+6H 2 O中,M的化学式为(  )
A.
N 2 O
B.
NO
C.
NO 2
D.
N 2 O 4
【单选题】— Do you work in the lab every afternoon? — No, but sometimes I wish I _____. [     ]
A.
have time to
B.
had time to
C.
have time to do
D.
had time to do
【单选题】I'm sorry I can't go with you, but I wish you______.
A.
a good time
B.
have a good time
C.
to have a good time
D.
will have a good time
【多选题】*右旋糖酐的特点是
A.
分子量较大
B.
抑制血小板和红细胞聚集
C.
渗透性利尿作用
D.
易渗出血管
E.
无毒
【单选题】I left very early last night, but I wish I______so early.
A.
didn' t leave
B.
hadn' t left
C.
haven' t left
D.
couldn' t leave
【单选题】现有反应4NH 3 +5O 2 ==4NO+6H 2 O,反应速率分别用v(NH 3 )、v(O 2 )、v(NO)、v(H 2 O)表示,其关系正确的是
A.
4v(NH 3 )=5(O 2 )
B.
4 v(NH 3 )='6' v(H 2 O)
C.
4v(O 2 )='5' v(NO)
D.
4 v(NH 3 )='5' v(NO)
【单选题】----You haven’t been to Beijing, have you? ----_____. How I wish to go there!
A.
Yes, I have
B.
Yes, I haven’t
C.
No,I have
D.
No,I haven’t
【单选题】I enjoyed the movie very muchI wish I______the book from which it was made.
A.
have read
B.
had read
C.
should have read
D.
are reading
【单选题】已知反应4NH 3 +5O 2 4NO+6H 2 O,若在反应开始后5s~10s之间的反应速率分别用v(NH 3 )、v(O 2 )、v(NO)、v(H 2 O)表示,则下列判断正确的关系是(  )。
A.
v(NH 3 )=v(O 2 )
B.
v(O 2 )=v(H 2 O)
C.
v(NH 3 )=v(H 2 O)
D.
v(O 2 )=v(NO)
【单选题】现有反应4NH 3 +5O 2 =4NO+6H 2 O,反应速率分别用v(NH 3 )、v(O 2 )、v(NO)、v(H 2 O)、表示,其关系正确的是(  )
A.
4v(NH 3 )=5(O 2 )
B.
4v(NH 3 )=5v(H 2 O)
C.
4(O 2 )=5v(NO)
D.
4v(NH 3 )=5v(NO)
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