高压淋浴水压为()
A.<1个大气压力
B.1~2个大气压力
C.2~3个大气压力
D.2~4个大气压力
E.4~5个大气压力
参考答案:D
After the class was over, the student apologized _______ the teacher ______ his coming late.
A./; because
B./; for
C.to; because
D.to; for
非接触作战样式出现的背景包括:()
A.能够远距离侦察
B.高技术武器射程空前远
C.高技术武器装备航程空前增大
D.作战武器打击精度非常高