第四心音
A. 标志心室收缩的开始
B. 与心房收缩有关
C. 标志心室舒张的开始
D. 似第二心音之回声
E. 似第一心音之回声
F. 下列各心音的临床意义是
Passage OneQuestions 11 to 13 are based on the passage you have just heard.
A. On the second Sunday in May.
B. On the third Sunday in May.
C. On the second Sunday in June.
D. On the third Sunday in June.
The publishing house has brought out an (entire) ______ new edition of the dictionary.
A writer and painter (be) ______ coming to speak to us about literature and painting today.
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