It was _____ and she did not know enough to analyze each problem properly.
A. encouraging
B. exhausting
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These days people are becoming more and more _____ about the food they eat.
A. sophisticated
B. selective
Imagine how many times restaurants and merchants had to change their posted prices during the _____ 1970s, when prices almost doubled.
A. inflationary
B. extraordinary
证券公司持有一种权益类证券的市值与其总市值的比例不得超过( ),但因包销导致的情形和中国证监会另有规定的除外。
A. 5%
B. 8%
C. 10%
D. 15%
最易发生晕厥和心绞痛的是
A. 二尖瓣狭窄
B. 二尖瓣关闭不全
C. 主动脉瓣狭窄
D. 主动脉瓣关闭不全
E. 肺动脉瓣狭窄