【简答题】【消耗次数:1】
Translate the following sentence into ChineseGovernments of many countries have established laws to protect the air, forests and sea resources.
参考答案:
复制
纠错
相关题目
【简答题】 Translate the following sentence into Chinese.These senior scientists have committed to the rapid development of the Air Force of China all their lives.
【单选题】 China is ____ in natural resources.
①  excessive
②  adequate
③  rich
④  enough
【单选题】 Latin America has an __________ labor force and natural resources.
①  wealthy
②  abundant
③  scattered
④  deposited
【简答题】 Translate the following sentence into Chinese.3. He came first in the race.
【简答题】 Translate the following sentence into Chinese.2. The Greens is very kind to us.
【简答题】 Translate the following sentence into Chinese.In fact, it has nothing to do with him at all.
【简答题】 Translate the following sentence into ChinesePeople gain fortunes not only by hard labor but also by honesty.
【简答题】 Translate the following sentence into English.我刚到家电话就响了。
【简答题】 Translate the following sentence into ChineseRapid industrial growth makes new demands on science and technology.
【简答题】 Translate the following sentence into ChineseThis is an important meeting. Please see to it that you are not late for it.
随机题目
【判断题】 X、Y相互独立,则X、Y必不相关
①  正确
②  错误
【判断题】 相互独立的随机变量序列,如果具有有限的数学期望,则该序列服从大数定律。
①  正确
②  错误
【判断题】 cov(X,Y)=0等价于D(X+Y)=DX+DY.
①  正确
②  错误
【判断题】 在500ml的水中有一个草履虫,现从中随机取出2ml水样放到显微镜下观察,则发现草履虫的概率是0.004
①  正确
②  错误
【判断题】 A.B 为任意二随机事件,则 P(A∪B)=P(A) +P(B)
①  正确
②  错误
【判断题】 随机变量X的方差DX也称为X的二阶原点矩
①  正确
②  错误
【判断题】 事件“ABC”表示三事件 A、B、C 至少有一个发生
①  正确
②  错误
【判断题】 X为随机变量,a,b是不为零的常数,则E(aX+b)=aEX+b.
①  正确
②  错误
【判断题】 设X、Y是随机变量,若X与Y相互独立,则E(aX+bY)=aEX+bEY
①  正确
②  错误
【判断题】 设 ,若 A与B互不相容,则A与B必不相互独立.
①  正确
②  错误