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【单选题】
设系统中有H2O(g),C(s),CO(g),CO2(g),和H2(g)五种物质,问独立组分数是多少( )。A.
1
B.
2
C.
3
D.
4
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反馈参考答案：
举一反三
【简答题】会展职业的核心技能也就是解决人群聚集的(__)。
【简答题】春天像刚落地的娃娃, ,他生长着。(《春》朱自清)
【单选题】Jeff goes to work _____ and his wife goes to work _____. [ ]
A.
by car; on her bike
B.
by a car; on her bike
C.
by cars; by bike
D.
by his car; by bike
【单选题】Jeff goes to work _______and his wife goes to work_______ [ ]
A.
by car; on her bike
B.
by a car; on her bike
C.
by car; by bikes
D.
by his car; by her bike
【单选题】下列各句所用的修辞手法与句后括号内所标注的不符的是( )
A.
东风来了，春天的脚步近了。(拟人)
B.
春天像刚落地的娃娃，从头到脚都是新的，他生长着。(比喻)
C.
他们盛赞它“引出知道迷宫的线索”、“打开一切科学宝库的钥匙”，给它以极高的地位。(引用)
D.
为什么某些生物的分布广泛而繁多，而它的邻种却分布狭小而稀少呢(反问)
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