中国进行宏观经济管理的法律手段主要是相应的立法，即通过特定的法律法规来进行对( )

在去除抑制因子后，L型细菌可以返祖回复为原来的形态。()

用所给动词的 适当形式填空。

1. I'm sorry ______ (say) that there's nothing ______ (eat).

2. This afternoon the biggest football match of this year ______ (be) on TV.

3. Mr. Wu ______ (see) the film before.

4. It is ten years since I ______ (leave) my hometown.

5. You need something ______ (drink), don't you?

6. Either he or I ______ (be) right.

7. No ______ (smoke) in the hospital, please.

8. He would take out his money and ______ (pay) for the bill.

9. It's time for rest; let's stop ______ (have) our lesson.

10. What color do you decide ______ (buy)?

体重(kg)＝6(kg)+月龄×0.25(kg)，此公式适用于

A．13～15岁

B．2～12岁

C．1～3岁

D．1～6个月

E．7～12月

喉内局限性恶性肿瘤最好的治疗方案是（）。

A.照射治疗

B.喉正中切开术

C.全喉切除术

D.全喉切除和颈部根治术

E.镭针植入

确定肺结核是否为传染源的最主要依据是（）

A.血沉检查

B.X线检查

C.痰结核菌检查

D.结核菌素试验

E.血结核抗体检查