第四心音的论述，正确的是
A．出现在心室舒张中期B．出现在心室舒张末期C．出现在等容收缩期D．出现在心房舒张时E．出现在心室舒张早期
参考答案：B
语法填空
English now is also spoken as a foreign or (1)___ language in South Asia. For example, India has a
very large number of fluent English speakers because Britain ruled India from 1765 (2)___1947. English (3) (speak)______ in Singapore and Malaysia and some (4)______ in Africa such as South Africa too.
During that time English became the language for government (5)_____ education. Today (6)_____
number of people learning English in China (7) (increase)__________ rapidly. In fact, China may have
the (8) (large)______ number of people (9) (learn)_______.Will Chinese English develop (10)_____
own identity ? Only time will tell.
什么是涉外交往的“不必过谦”原则？
