下列词语中加粗字的读音，全都正确的一项是[ ]A、辖（qiá）制怂（sǒng）恿

给句子中的画线词语选择正确的解释。

走着走着，乃巴山又把路挡住了，大家走起来很不方便。 [ ]

A．适宜

B．便利  

C．使便利

我国煤炭工业的法律法规体系，由哪两个层次组成？

根据首字母提示完成单词 。

1. Dave has worked for 6 hours, so now he is very s           .

2. The o     day, he bought a present for me.

3. They aren't s         enough at that age.

4. He often s___   up reading until midnight.

5. Do you like your school u____?

需要用恒温振荡培养箱培养的是

A．链球菌
B．真菌和酵母菌
C．变形杆菌
D．铁细菌
E．霍乱弧菌

LH