This is one of the highest buildings that ______ in our city.
A. are ever built
B. have ever built
C. have ever been built
D. were ever built
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Gelert was ______.
A. a cat
B. a wolf
C. the Prinee's enemy
D. a dog
By the time you came back yesterday, they ______ for London.
A. have left
B. left
C. had left
D. leave
配管配线工程安装中,钢管与钢管的连接应采用()。
A. 电焊连接
B. 丝扣连接
C. 气焊对焊连接
D. 蛇皮管连接
妊娠痫证的临床表现,下列哪项是错误的
A. 忽然眩晕倒仆,昏不知人
B. 多发生于妊娠早期
C. 四肢抽搐,牙关紧闭,目睛直视,口吐白沫
D. 少时自醒,醒后复发,或昏迷不醒
E. 面浮肢肿,小便短少