不常用的紫外线灯管有（） A.15W B.20W C.25W D.30W

阅读对话填空。

Amy: What do you have for lunch on Tuesday?

Server: We have tomatoes, tofu and fish. Here is our school menu.

Amy: That sounds good. What do you have for dinner?

Server: We have potatoes, noodles and green beans.

1. Amy has ___________, ___________ and ___________ for lunch on Tuesday.

2. Amy has ___________, ___________ and green beans for dinner.

某外商投资项目投资总额为1800万美元，则最低注册资金额为______万美元。

A．1360

B．900

C．720

D．600

根据大肠癌改良Dukes分期标准，B₁期是指（）

A.癌肿局限于黏膜层

B.癌肿穿透肌层而无淋巴结转移

C.癌肿侵入肌层而无淋巴结转移

D.癌肿在肠壁内而淋巴结已有转移

E.癌肿穿透肠壁，淋巴结有转移

状态检测防火墙的优点是什么？为什么？

长期用药不易产生依赖性的药物是( )

A．三唑仑
B．地西泮
C．水合氯醛
D．苯巴比妥
E．苯妥英钠