Do you ___the leaking gas?
A. see
B. smell
C. taste
D. hear
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It seems impossible to ease the___of Chinese people toward the Japanese soldiers.
A. hate
B. angry
C. hatred
D. annoyance
The businessmen who ___little care to their children feel regretful now.
A. gives
B. give
C. giving
D. have given
He was fired __he couldn't do what the manager told him to do.
A. because
B. which
C. what
D. where
下列醇与卢卡斯试剂反应，其活性由大到小排列正确的是（）。①叔丁醇 ②仲丁醇 ③正丁醇 ④苯甲醇
A. ④②③①
B. ①②③④
C. ④③②①
D. ④①②③
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