【C5】A．displayB．activityC．actionD．flow

Compensated flow control or constant flow valves are used in hydraulic systems to .A.compe

A．pressureB．speedC．levelD．flow

让隐藏的MeForm表单显示在屏幕上的命令是 A)MeForm．DisplayB)MeForm．ShowC)MeForm．List

下面选项中,哪一项是Android的四大组件之一（)。A、ListViewB、ActivityC、IntentD、Bundle

【C3】A．displayB．indicateC．demonstrateD．appear

A. thoughtB. replyC. actionD. advice