题目内容

成本累计曲线图上的实际支出与计划情况存在偏差,则说明项目执行中发生了问题

A. 对
B. 错

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1.When I entered the room, Tom ________piano.

A. plays
B. played
C. is playing
D. was playing

At this time last night I ________TV.

A. was watching
B. watched
C. am watching
D. have watched

When we reached the top of mountain, the sun _______.

A. was shining
B. shines
C. is shining
D. has shined

The sun _____ around the earth.

A. moved
B. is moving
C. was moving
D. moves

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