The Nanjing Yangtze River Bridge is one of the longest bridges that ______ over the Yangtze River.
A. have ever built
B. were ever built
C. are ever built
D. have ever been built
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Chinese is spoken by the largest people of the world, ______ is true.
A. that
B. what
C. this
D. Which
We must take care that we have not ______ any detail in the detection.
A. disappeared
B. delivered
C. thrown
D. Neglected
能降气化痰,止咳平喘的药物为()
A. 桔梗
B. 紫苏子
C. 百部
D. 紫菀
E. 白果
具有敛肺定喘,止带缩尿之功的药物为()
A. 苏子
B. 葶苈子
C. 桑白皮
D. 马兜铃
E. 白果