操作系统是一种
B
暂无解析
Ifyouhavetheright___(equip)，youwon’tfindthejobdifficult.
Everyboyandgirl___(treat)inthesameway.
Whenwereturnedfromourvacation,ournextdoorneighborswere______anewgaragebuilt.
国家之间发生经济联系的必然性取决于()
The_(month)salaryforthepositionwillbenegotiableataround$2,000.