硝酸甘油的副作用有
A．青光眼
B．体位性低血压
C．心率减慢
D．头痛
E．足踝部水肿
参考答案：A,B,D
----Have they finished the project?
---- Yes. By the end of last month, they ______ it. Now they ______ on a new one.
A．had finished; are working
B．had finished; work
C．have finished; are working
D．have finished; work
下列功能不属于189邮箱功能的是（）。
A.自写短信功能
B.邮件代收功能
C.网络硬盘功能
D.更改手机密码功能
