H.249协议命令中可以由MG发起的是（）。A.Add B.Modify C.Not

The hotline_________ be very busy，but keep trying and you’ll get through．

A．should

B．must

C．can

D．would

签订正式买卖合同时卖方可能要求支付首期房款或称之大订，约（）万元左右。

A.3

B.5

C.10

D.30

根据句意，用括号内所给单词的适当形式填空。

1. They need to have a _______ (far) discussion on that problem, I'm afraid.

2. What strange _______ (suggest) you have offered!

3. When the _______ (disturb) news reached the chairperson, he felt really bad about it.

4. Peter has his way to do things, and his wife has _______ (she), but they never quarrel.

5. It is _______ (polite) of him to leave without saying anything.

患者男性，38岁。右眼剧烈眼痛，畏光，流泪及视力下降，检查见混合性充血，颞侧明显，角膜点至点周边部基质层出现浸润。

需鉴别的疾病有（）.

A.带状角膜变性

B.单纯疱疹性角膜炎

C.格子样角膜变性

D.真菌性角膜炎

E.细菌性角膜炎

F.Terrien角膜边缘变性

对于游客中举止不端、行为猥亵的任何表现，都应向其郑重指出其行为的严重性，令其立即改正。( )