太阳照射大地，一片光明，相对地，月光就显得那么柔和、暗淡，月光之所以没有太阳光线强，

月经先后无定期的脏腑病机是 （）

A.肝的功能失调

B.肾的功能失调

C.肝脾功能失调

D.肝肾功能失调

E.脾肾功能失调

病蜂外观无明显症状，解剖见中肠灰白、环纹消失，失去弹性易破裂，最可能的疾病是（）

A.蜜蜂孢子虫病

B.美洲幼虫腐臭病

C.蜜蜂白垩病

D.欧洲幼虫腐臭病

E.蜜蜂马氏管变形虫病

请根据句意及英文释义选择或写出单词。

1. — Mom, I'd like some hamburgers. I think they are very _________ (nice, good).

    — OK, we'll have them for lunch.

2. — Please come in and have a _________ (seat, sit). 

    — Thank you.

3. — Dad, would you like to _________ (get, takes) a new bike for me?

    — Sure. What color would you like?

4. These are your oranges. Those are _________ (my oranges).

5. — What time do you often get up in the morning?

    — At a _________ (fifteen minutes) past six.

HIV疫苗研究目前遇到的最大问题是（）

A.病毒无法培养

B.无感染的动物模型

C.病毒型别多

D.病毒突变引起抗原性改变

E.HIV的敏感细胞特殊

雅各在舅舅住了多少年？