飞机精密进近下降到决断高(DH)时,如果不能建立目视参考,应当:().
A.立即复飞
B.继续下降直到找到目视参考
C.保持决断高飞行
D.保持决断高至复飞点复飞
参考答案:A
What does she look like?[ ]
A. She is well.
B. She is good.
C. She is tall.
D. She likes her.
主体结构标准段侧墙及板一次性浇筑优先考虑哪种脚手架搭设方式?