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【单选题】
下列溶液不能组成缓冲溶液的是 ( )A、NH3和NH4Cl B、H2PO4-和HPO42-C、氨水和过量HCl D、HCl和过量氨水A.
A
B.
B
C.
C
D.
D
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反馈参考答案：
举一反三
【单选题】Back home, Li told her mother: “I’m going to play tennis.” Surprised, her mother (couldn’t help asking): “What’s tennis?”
A.
不能帮忙问
B.
忍不住问
C.
不能帮忙
【简答题】中国“七夕节”又称( )节,女孩子可以在这一天祈求手工技艺的精进。
【单选题】Back home, Li told her mother:“I'm going to () tennis”
A.
play
B.
beat
C.
start
D.
pay
【多选题】中国共产党在新民主主义革命阶段的经济纲领包括( )。
A.
推翻帝国主义和封建主义的压迫，建立新民主主义共和国
B.
建立国营经济
C.
没收地主阶级的土地归农民所有
D.
允许民族资本主义经济的发展和富农经济的存在
【单选题】Li Yang told the little boy to go home.
A.
S+V+P
B.
S+V
C.
S+V+O
D.
S+V+O+O
E.
S+V+O+C
【单选题】This morning my mother told me _____ she would attend a wedding party _____ she wouldn’t come back home for lunch.
A.
that; and that
B.
that; and
C.
/; and
D.
/; /
【简答题】I'll be a photographer. I'm going to bring bits of Australia back home with me. I told myself this before, yet I feel so doubtful on this plane that's flying me thousands of miles away. I was so confi...
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