break语句最常见的用法是在switch语句中，通过break语句退出switch_爱下问搜题

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问题填空题

break语句最常见的用法是在switch语句中，通过break语句退出switch语句，使程序从整个switch语句后面的______开始执行。

答案

参考答案：第一条语句

解析：分支语句提供了一种控制结构，根据条件值的结果选择执行不同的语句序列，其他与条件值或表达式值不匹配的语句序列则被跳过不执行。Java语言提供了多分支语句switch，它根据表达式的值从多个分支中选择一个来执行。break语句最常见的用法是在switch语句中，通过break语句退出switch语句，使程序从整个switch语句后面的第一条语句开始执行。在 Java中还可以用break语句退出循环，并从紧跟该循环结构的第一条语句处开始执行。

完形填空

The following story took place long ago in Israel．One day when government officials were rebuilding barn(粮仓)，they found a mouse hole in a corner and used      to force the mice inside the hole to come out．A while later they indeed saw mice running out，one after another．
Then，everyone thought that all the mice had       ．But just as they were about to clean up，they saw two mice squeezing out at the     of the hole．After some      the mice finally got out．      ，they did not run away immediately．Instead，one chased after the other．It seemed that one was trying to        the tail of the other．
Everyone was     ，so they stepped closer to take a look．They       that one of the mice was blind，and the other one was trying to      the blind mouse to bite on his tail so he could       the blind one with him to escape．
After      what happened，everyone was lost in thought．One serious Rome official said："I think the relationship between those two mice was that of emperor and      ．" The others thought for a while and said：“That was why！”
A smart Israeli said："I think the relationship was husband and wife．"Again the others thought for a while，and all felt it made     ；so they agreed．Therefore，the Israeli’s expression showed       ．
A Chinese，who was accustomed to the firm tradition of       to parents，said："I think their relationship was that of mother and       ．"Once again the others thought for a while，and felt this was more reasonable．So they agreed yet another time．Therefore，the face of the Chinese     professional modesty．
At that moment，one pureminded Samaritan looked at other people，and asked："Why did those two mice have to have a certain relationship？"
Suddenly，the atmosphere     ．The group looked back at the Samaritan and remained speechless．The Rome official，the Israeli and the Chinese who had spoken earlier all lowered their heads in      ．
In fact，the true love is not       on benefit，friendship and loyalty or blood relationship．Instead，it is based on no relationship．

D．encouragement

B．Interestingly

C．Fortunately

A．selfconfidence

B．selfsatisfaction

C．selfcontrol

D．selfassessment

A．transformed

C．astonishment

B．established

判断题

对于两种证券形成的投资组合，当相关系数为1时，投资组合的预期报酬率和标准差均为单项资产的预期报酬率和标准差的加权平均数。（）