【简答题】下列程序执行后输出的第1行是______, 第2行是_______, 第3行是________。 #include using namespace std; void f (int n,int &k, int *m) { static int a=0; int b=0; if (n==1||n==2){ k=1; *m=1; } else { f(n-1, a, &b); k++; (*m)...
【单选题】You need to rewrite this sentence because it is ______ the readers will have difficulty in understanding it.
【单选题】In the sentence 'To do this, we need to persuade mankind.' (Para. 1), 'this' refers to ______.
C.
solve international problems
【单选题】再生器中旋风分离器用来分离( )和催化剂
【单选题】The sentence needs _______once more.
【单选题】You need to rewrite this sentence because it is ______ . The readers will have difficulty in understanding it.