What does the woman mean？ 查看材料
A. Professor Zhang couldn" t be in the lab.
B. Professor Zhang forgot to turn off the lights in the lab.
C. Professor Zhang went home a long time ago.
D. Professor Zhang was the last one to leave the lab.
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When did the concert begin？ 查看材料
A. 7:15.
B. 7:30.
C. 7:50.
D. 7:35.
怎样看待企业商业负债(应付票据与应付账款之和)的规模变化和结构变化？
会计利润与应纳税所得额之间的数量差异，一般可以分成两类：一类是________，另一类是________。
查看材料
A. provided
B. found
C. created
D. favored
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