【简答题】Generally, the acid rain can damage stone statues, trees and forests. It cancorrode as well.(plastics/ metals)
【单选题】Viruses 1. contain both protein and nucleic acid. 2. infect all domains of life. 3. can grow in the absence of living cells. 4. are generally the same size as prokaryotes. 5. always kill the cells the...
【单选题】达尼列夫斯基认为罗马文化是建立在()之上。
【判断题】不燃烧构件的耐火性能强,能够较长时间发挥支撑作用。
【单选题】两在海上发生碰撞,当无法确定各船的碰撞过失程度时,其损失().
【单选题】有关new和delete运算符,以下动态分配和回收数组内存的叙述错误的是__。
A.
new 类型名T [ 数组长度 ],分配的数组长度可以是任何正整型表达式,在运行时计算
B.
delete[] 指针变量名p,释放指针变量p所指向的数组。
C.
delete[]指针变量名p, p必须是用new分配得到的数组首地址。
D.
new 类型名T [ 数组长度 ]表达式命令的结果值有分配成功时是T类型的指针,指向新分配的内存;失败时是NULL值。
【简答题】Generally, the acid rain can damage stone statues, trees and forests. It can as well.
【简答题】Generally, the pH value of acid rain is .