剧毒化学品以及构成重大危险源的其他危险化学品在专用仓库内单独存放时，实行双人双发、双人保管。
参考答案：对
小题1: Elephants are usually ________ (friend).
小题2:He knows many ______ (story) about LeiFeng.
小题3:Listen! They are ______ (sing) in the classroom.
小题4: The garden is just ____________(在----后面)my house.
小题5: Do you want ______________ (watch) TV?
小题6: He enjoys _____________ (run).
小题7: There is a ____________ (杂志)on the desk.
小题8: I know some famous______________(演员).
小题9: My father doesn’t like my job because it’s too_____________(危险).
小题10: What’s your uncle __________（等待）for ?
我国某地有一口井，一年中只有一天太阳直射井底，该地位于 （ ）
A．北纬20°
B．赤道
C．北回归线
D．南回归线
