Android中使用openFileOutput(String name,int mode)方法获取到文件输出流时, 第二个参数mode常用模式有两种，分别为（   ）和MODE_APPEND。

I will get you a _______ seat belt for the baby ...

单项选择题I will get you a _______ seat belt for the baby A.
long B.
short C.
other D.
supplementary

You have to pay tax on the following goods, including（ ...

多项选择题You have to pay tax on the following goods, including（ ）. A. Liquor B. Cigarettes C. Personal use D. Carry-on laptop

搅动作用小于汽水重力作用时，汽和水混合得较好。

判断题搅动作用小于汽水重力作用时，汽和水混合得较好。