【单选题】加磨三棱镜确定加工基准线时,镜片中三点印记的中间一点不能被加工基准线遮盖,其目的是。
【单选题】Speaker A: Hello, may I speak to Alan Bright? Speaker B: ______
A.
Hello, may I ask who you are?
B.
Hello, please wait for a moment and I'll go to call him.
D.
Hello, I'm Alan Bright.
【单选题】—Hello! —_________ [ ]
【单选题】—Hello! Are you Alice? —_____ [ ]
【单选题】KISS原则是:
A.
Keep it strict and simple
B.
Keep it short and simple
C.
keep it short and smoothly
D.
keep it strict and smoothly