1999年美国体育产业总值为125.3亿美元，占当年国内生产总值的 2.4%。如按1

下面是某同学做的题，请你找出错误，并改正。

（1）A点的经纬度是：40E，80N；D点的经纬度是：20W，60S

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（2）图中B点位于C点的东南方。

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（3）E点位于北半球和西半球。

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By the time Fred gets back home, his girlfriend       for London to study.

A．will have left

B．leaves

C．has left

D．will leave

—I thought you were building a ship, why not put it in the lake?

—Because it _______. What's more, it needs to ________. [ ]

A. would not finish,  repaired

B. hasn't been finished yet,  be repaired

C. won't finished yet,  be repairing

D. didn't finish,  repaired

慢性胃窦炎发病的病因最重要的是（）

A.急性应激性疾病

B.沙门菌感染

C.幽门螺杆菌感染

D.自身免疫

E.以上都不是

在有调光要求的剧场、影剧院，一般应选用( )光源。

A．金属卤化物灯
B．荧光灯
C．高压汞灯
D．白炽灯