Fueling activities()waste liquids and vapor releases to air.
A、commence
B、generate
C、give
D、have
A、commence
B、generate
C、give
D、have
A、All engines,motors,fans,etc. should be shut down when fueling B、All windows,doors,hatches,etc. should be closed C、A fire extinguisher should be kept nearby D、Fuel tanks should be topped off with no room for expansion
A、如果Activity已经在任何栈中启动,则不做任何操作 B、如果Activity已经在当前栈中启动,则不做任何操作 C、如果Activity已经在当前栈中启动,则所有在该Activity之上的Activity都会被销毁 D、如果Activity已经在任何栈中启动,则所有在该Activity之上的Activity都会被销毁
A、active/activeusingspanningtree B、active/active C、active/passiveusingspanningtree D、active/passive
A、实现Activity的onSaveInstanceState()方法 B、实现Activity的onSaveInstance()方法 C、实现Activity的onInstanceState()方法 D、实现Activity的onSaveState()方法
A、通过把当前activity对象传递给service对象 B、通过向Activity发送广播 C、通过Context对象更改Activity界面元素 D、可以在Service中,调用Activity的方法实现更改界面元素