报检单上“标记及号码”栏如有计算机无法绘制的图案，不能手工加注。 ( )
参考答案：错
It was _____ back home after the experiment. [ ]
A. not until midnight did he go
B. until midnight that he didn't go
C. not until midnight that he went
D. until midnight when he didn't go
1912年豪华游轮泰坦尼克号在大西洋触冰山沉没，之前曾发出SOS信号，后有600多人获救。这些人获救得益于当时运用了[ ]
A、雷达技术
B、声纳技术
C、无线电技术
D、通讯卫星技术
