混凝土掺入引气剂,使混凝土的密实度和抗冻性均降低。
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[音频]I know that it might sound _____ crazy(来源:歌曲《I Knew I Loved You》)
A. really
B. a little
[音频]_____, he was a gifted student and he followed current events very closely. (来源:博客《世界名人简介》)
A. Obviously
B. Unexpectedly
[音频]A kind of what the speechwriting gurus from the Oratory Laboratory to _____. (来源:CNN新闻)
A. point out
B. make clear
[音频]—I'm sorry. Oh, I'm sorry. Let me go. I'm sorry! —An apology ______! (来源:美剧《跟踪者》)
A. is useless
B. is necessary