【单选题】下列说法错误的是( )
B.
垃圾处理公告牌使用船旗国官方文字及英文或法文中的一种
【单选题】12下列说法中错误的一种说法是()
C.
边际产量曲线一定在平均产量曲线的最高点与之相交。
【单选题】I ________ smoking in the end, because it is not allowed in public indoor places in our country now. [ ]
【单选题】Which of the following is not one of the basic political systems of our country? ( )
A.
The system of regional ethnic autonomy
B.
The system of community-level self-governance
C.
The system of CPC-led multiparty cooperation and political consultation
D.
The system of people’s congresses
【简答题】影响设置平曲线半径的因素有哪些?极限最小半径的使用条件是什么?
【单选题】在驻波中,两个相邻波节间各质点的振动[ ]
【单选题】“益达”口香糖中的木糖醇(分子式为C 5 H 12 O 5 )是一种新型甜味剂。下列说法错误的是 [ ]
A.
木糖醇中C、H、O三种元素的原子个数之比为5∶12∶5
【简答题】文件的逻辑结构分为两种形式,分别是 有结构的记录式文件 和 _____________ 。
【判断题】Debate is not very popular nowadays in our country because China has no debate history.