【单选题】He_____________ his homework at school. [ ]
【单选题】下列不是物质透过膜的主要三种方式( )。
【单选题】要打开一个三位数组成的密码锁,可以从000、001、002逐一尝试直到998、999,总会打开密码锁,这种解决问题的策略是_____
【单选题】下列不是物质透过膜的主要三种方式( )。
【单选题】He ______ lunch at school every day. [ ]
【单选题】There are two _____ students in my school. But our school _____ library. [ ]
A.
hundreds, doesn't have a
B.
hundred, doesn't have a
C.
hundreds of, doesn't have any
D.
hundred, doesn't have any
【单选题】She ____ to school on Saturdays and Sundays. [ ]
【单选题】在AutoCAD2009中创建选择集设置完毕后,需要连续点()次[确定]按钮,保存所有的设置。()