按照现行的《海道测量规范》规定:海控二级点测角中误差为______。
A.+5〞 B.±7.5〞 C.±10〞 D.±12〞
参考答案:C
After the terrible accident, it took her nearly 3 years _______ she completely recovered.
A.since
B.after
C.before
D.that
客车整备场的纵列式布置图适用于()
A.固定作业方式
B.技术作业方式
C.移位作业方式
D.定位作业方式