以下哪个不是女性淋病合并症：
A．输卵管炎B．盆腔炎C．关节炎D．心包炎E．胃炎
参考答案：E
.When people move to another country, they often try ________ the customs of their native land.
A．to keep on
B．to keep off
C．to keep up
D．keeping up
为了及时控制带式输送机事故的发生和扩大，在巷道碹帮上每隔（）米安装一个按钮。
A.10∽20
B.20∽30
C.30∽40
D.40∽50
