试述机械表面贴装工艺的要求。

根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。(E 涂AB，F涂AC, G涂 AD)（5分）

— Hi, Mike. Haven’t seen you for ages! How are you doing?

— Can’t complain I’m busy with my experiments in the lab but after work I often play some sports.

—     61     

— Like tennis, running and golf.

— Golf? That’s also my favorite game.

— Oh, really?

—    62      

— I usually play about once a month. What about you, Susan?

—I play every Sunday.

—Even when it rains?

—Yes, even when it rains. I never miss a game on Sunday.

—    63    

—The Country Club. Do you know it?

—    64   

—That’s great! So you know the place.

—Yes, of course. You’re going to play next Sunday, I suppose.

—Let me see…

—    65   

—Oh, I’d love to. What time shall we meet?

—Let’s meet at the clubhouse at 1:30 in the afternoon.

—Good. See you then.

A. For example?

B. How Often do you play it？

C. Who do you play for?

D. Like what?

E. we can play together.

F. Where do you go?

G. Yes, I was there once.

全冠口内试戴时应检查的问题是（）

A.咬合、就位

B.就位、龈边缘

C.龈边缘、咬合、就位

D.接触点、、咬合、就位

E.接触点、咬合、就位、龈边缘

急性化脓性阑尾炎属于（）。

A.变质性炎症 

B.浆液性炎症 

C.纤维素性炎症 

D.蜂窝织炎症 

E.化脓性炎症

要在8×8的棋盘上摆放8个“皇后”，要求“皇后”之间不能发生冲突，即任何两个“皇后”不能在同一行、同一列和相同的对角线上，则一般采用______来实现。

A．分治法
B．动态规划法
C．贪心法
D．回溯法

在长期的奋斗中、我国航天工作者不仅创造了非凡的业绩，而且铸就了特别能吃苦、特别能战斗、特别能攻关、特别能奉献的载人航天精神。对载人航天精神的认识正确的（）

A.载人航天精神就是中 * * 精神

B.载人航天精神是中 * * 精神在当今时代的突出表现

C.载人航天精神是航天工作者独有的精神财富

D.载人航天精神是中 * * 精神发展的巅峰