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问题 单项选择题

女性，35岁，风湿性心脏病患者，疑为亚急性感染性心内膜炎，检测心脏瓣膜有无赘生物的最好方法是（）

A.X线检查

B.超声心动图

C.心电图

D.CT扫描

E.血培养

答案

参考答案：B

单项选择题

虚函数必须是类的（ ）。

A． 成员函数

B． 友元函数

C． 构造函数

D． 析构函数
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单项选择题

The standards of physical and medical fitness established by the Party shall not ensure that seafarers（）.

A.have the physical capability to fulfill all the requirements of the basic training

B.demonstrate adequate hearing and speech to communicate effectively

C.are suffering from any medical conditions likely to be aggravated by service at sea

D.have no medical condition that will prevent the effective e and safe conduct of their routine and emergency duties on board
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