PPT设计原则之对比的作用主要有组织信息、清晰层级。
A. 对
B. 错
() he hasn't any formal qualification , he has managed to do very well.
Although
B. If
C. Despite
D. Whereas
Neither John nor his parents () at home.
A. is
B. has
C. are
D. was
() today, he would get there by Friday.
A. Was he leaving
B. Will he leave
C. Were he to leave
D. If he leaves
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