题型:名词解释 After the party, most guests left, with only two of them ________ in the host family, _____ him cleaning up. [ ]A. remaining; helpedB. remaining; helping C. remained; helped D. remained; helping 查看答案
题型:名词解释 图1为1950-2007年黄河入海口附近的利津水站径流量与输沙量变化图。读图推断该水文站河水含沙量变化的主要原因是 A.流域工业用水的增加B.流域降水量的增加C.上中游水库的增建D.中游水土流失的加剧 查看答案
题型:名词解释 下列程序的输出结果是_______。 #include<stdio.h> main() union int k;char i[2]; *s,a; s=&a; s->i[0]=0x39;s->i[1]=0x38; printf("%x\n",s->k);A.3839B.3938C.380039D.390038 查看答案