质粒是细菌的A．染色体DNAB．胞质颗粒C．染色体外DNAD．胞质中核糖体E．中介体

以下属于市场调研计划的重要阶段的有( )。

A．数据搜集

B．建立假设

C．分析和解释

D．结论和建议

在下面对话的空格内填上一个适当的词，使之意思完整,语句正确。

A: 1.               I come in?

B: Yes, please. Would you like 2.               to drink?

A: Yes, I'd like a cup 3.               tea.

B: 4.               you are.

A: Thank you.

B: 5.               welcome.

侯方域：《桃花扇》（）

A．蒲松龄：《聊斋志异》

B．石头记：《红楼梦》

C．崔莺莺：《西厢记》

D．秦始皇：《后汉书》

填空题。

(1) experience____

     He would go through fire and water for his country.

(2)look at carefully____

    They went through our luggage(行李)at the

    customs(海关).

(3)look through____

    We spent several days going through all related

    materials(相关材料).

(4)pass through____

    1 was afraid to go through the forest at night.

2010年版《中华人民共和国药典》规定的款冬花的剂量是（）

A.3～8g

B.4～7g

C.5～10g

D.1～6g

E.6～10g