【单选题】设某程序中有PROG1.prg、PROG2.prg、PROG3.prg三个程序依次嵌套,下面叙述中正确的是
A.
在PROG1.prg中用!RUN PROG2.prg语句可以调用PROG2.prg子程序
B.
在PROG2.prg中用RUN PROG3.prg语句可以调用PROG3.prg子程序
C.
在PROG3.prg中用RETURN语句可以返回PROG1.prg主程序
D.
在PROG3.prg中用RETURN TO MASTER语句可以返回PROG1.prg主程序
【简答题】The vaccination against anthrax is only recommended to ______.
【简答题】6 Correct the errors in the following sentences. 1)The manager for them prepares some beautiful gifts. 2) Could you tell to me something about their cultural background? 3) Mr. Wang has left in their ...
【判断题】黄金储备依然是我国最主要的国际储备资产。
【简答题】1) The manager for them prepares some beautiful gifts. 2) Could you tell to me something about their cultural background? 3) Mr. Wang has left in their mind a deep impression. 4) Do they always wave t...
【简答题】Diseases can be pred by means of vaccination or ______.
【判断题】黄金储备依然是我国最主要的国际储备资产( )
【单选题】塔克拉玛干沙漠位于中国新疆的塔里木盆地中央,是中国最大的沙漠,也是世界第二大沙漠。请问是塔克拉玛干沙漠是世界世界第几大的流动性沙漠()
【简答题】我国某一盆地,位于地势第二阶梯,盆地中的沙漠是我国面积最大的沙漠,常常飞沙走石,盆地边缘的山麓地带,高山冰雪融水哺育着一块块绿洲。该盆地是 A.柴达木盆地 B.准噶尔盆地 C.塔里木盆地 D.四川盆地