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问题 单项选择题

下列叙述中，正确的一条是______。

A．不同应用程序之间不可以通过“剪贴板”进行信息共享
B．所有应用程序之间都可以通过“剪贴板”进行信息共享
C．所有应用程序之间都可以通过“剪贴板”进行同类信息(例如都是文字)共享
D．一部分应用程序之间可以通过“剪贴板”进行一定程度的信息共享

答案

参考答案：D

多项选择题

关于金具强度的安全系数，下列哪些说法是正确的？（）

A.在断线时，金具强度的安全系数不应小于1.5

B.在断线时，金具强度的安全系数不应小于1.8

C.在断联时，金具强度的安全系数不应小于1.5

D.在断联时，金具强度的安全系数不应小于1.8
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填空题



As always, I am pleased to be here at the National Press Club for my (1) Speech. This is the seventh time I have had the (2) to give this speech, and over the years I have talked about a wide range of issues: (3) , reading, setting high expectations, improving the teaching profession, and (4) the American high school -- to name just a few.
I have just returned from a five-day, (5) tour of schools in rural America. We started in Monroe, Louisiana, and finished (6) later in Paducah, Kentucky. What I noticed most about the trip was the weather. Every time I (7) my Success Express School Bus, the local people who came to greet me (8) that the record for (9) had just been broken in their community. In each place, the temperature was always between (10) degrees.
Now, I have very good people on my staff. But the next time we plan a (11) , I’m going to have a (12) on my staff. I took this bus trip through rural America to make an important point that the (13) of children in our nation’s small towns cannot be ignored. Twenty-five percent of all our school children live in (14) all over America.
When it comes to our children, let’s always remember that children everywhere have (15) and (16) . Yet, schools in small towns too often have to (17) because of limited resources and a (18) . On my trip I put a p focus on the issues that matter in rural America, with a particular emphasis on (19) schools, reducing class size, and overcoming the (20) .
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