【单选题】We are told everywhere. It's our duty to keep our school clean and tidy. [ ]
A.
not to make much noise
【单选题】关于分子与器壁的碰撞频率,下面说法正确的是?
【单选题】Trees and flowers _____ every year to make our school more beautiful. A. plant B. are planted C. were planted
【单选题】下列哪个选项不是具有相反意义的量?结果正确的是()
【单选题】In class, Miss Zhang is really __ about our study. But after class, she always tries many ways to make our school life not so boring.
【单选题】下列哪个选项是表达式(8/5)的计算结果?
【单选题】下列哪个选项是表达式(2+'A')的运算结果?
【单选题】关于表达式1234/1000 * 1000的运算结果,下列哪个选项是正确的