【判断题】开沟器可分 为 移动式 和 回转式 两类。()
【单选题】Improper package will result in thedamage to the goods during the lon9—distance transporta—tion.
【单选题】要求参加运算的数必须是整数的运算符是【 】
【单选题】How was Dave?
A.
Dave was not only tired;
C.
There was something wrong inside with Dave.
【单选题】要求参加运算的数必须是整数的运算符是【 】