中国对巴西的出口产品中少量的机电产品，而巴西对中国的出口的产品超过一半是机电产品，这形成了巨大的反差。（）
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专业技术人员的自我锤炼既要不断充实自己的专业知识和技能，还要( )。
A. 参加实践
B. 开展协作
C. 学习和运用创造性思维
D. 善于倾听他人意见
If you find a glove on the road on Valentine's Day, your future beloved will ___________.
A. have the other missing glove
B. have the other missing shoe
C. have the other missing spoon
D. have the other missing love knots
When was Valentine supposedly executed?
A. This was on February 14, 269 A.D..
B. This was on March 14, 269 A.D..
C. This was on July 7, 269 A.D..
D. This was on January 14, 269 A.D..
Young soldiers were not allowed to marry because the emperor was afraid that _________.
A. they were too young to marry
B. they would associate with Valentine
C. they wouldn’t want to join the army
D. they would defy the emperor’s order
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