单选题：Paragraph H mainly discuss__________

题目内容：

Paragraph H mainly discuss__________ A．thinking things through
B．a larger brain capacity
C．specialist are
D．the critical time

参考答案：

答案解析：

"But it's important to remember this is not about the　9　,

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已知甲的步行的速度是乙的1.4倍。甲、乙两人分别由A，B两地同时出发。如果相向而行。0.5小时后相遇；如果他们同向而行，那么甲追上乙需要多少小时？（　　）A．1

分类：英语四级题型：单选题

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-1，6， -5，20，-27，（　　）A．70 B．54 C．-18 D．72

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When you perform aerobic activities you　9　contract large muscle groups such as y

分类：英语四级题型：单选题