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【单选题】
在编写异常处理的 Java ,每个 catch 语句块都应与 ( ) 语句块对应,使得用该语句块来启动 Java 的异常处理机制。
A.
if-else
B.
switch
C.
try
D.
throw
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【判断题】在平面应力状态下,对于任意两斜截面上的正应力【图片】成立的充分必要条件是【图片】( )
A.
正确
B.
错误
【单选题】下列忌火煅的药物是
A.
龙骨
B.
珍珠
C.
朱砂
D.
磁石
E.
青礞石
【单选题】在学生表中要查找所有年龄大于30岁王姓的男同学,应该采用的关系运算是( )
A.
选择
B.
投影
C.
联接
D.
自然联接
【简答题】This morning, I went camping along a path in Green Natural Park with my friends. We were happy because it was a sunny day. We were expecting an enjoyable two-day holiday. On the way, we kept singing a...
【单选题】在平面应力状态下,对于任意两斜截面上的正应力σα=σβ成立的充分必要条件是:
A.
σx=σy,τxy≠0
B.
σx=σy,τxy=0
C.
σx≠σy,τxy≠0
D.
σx=σy=τxy
【简答题】阅读理解。 Dear Peter, My name is Frank. I am from America. Here is a picture of my friends. We are in the same grade. Look at the picture, in the middle, you can see my friend Jimmy. He likes all the spor...
【单选题】以下错误描述道路设计的是()。
A.
需主次分明,有明确的方向性
B.
道路设置必须因地制宜
C.
道路的交叉口应为锐角
D.
应追求曲线流线型的平面
【简答题】阅读理解。 I'm going to see a movie with my friends this weekend. We love seeing movies, but we all like different kinds. I like to see thrillers and science fictions, my friend Sam loves action movies and...
【简答题】阅读理解并回答问题。 My name is Sally. I'm 9 years old. I often go to the park with my friends. We often play badminton (羽毛球) in the parks. It's my favourite . Many people are in the park, too. Some are rea...
【判断题】191 中国画的线描和古典西洋绘画素描的理论知识是完全一致的。
A.
正确
B.
错误
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