【简答题】A.They scare whales to death. B.They produce too much noise. C.They discharge toxic emissions. D.They ener lots of water life.
【单选题】下列有关台形布局的叙述 , 错误的是
A.
中餐宴会一般采取 “ 中心第一、先右后左、高近低远 ” 的原则
C.
先右后左是国际惯例 , 即主人左席的地位高于主人右席的地位
D.
高近低远是指按被邀请客人的身份安排座位 , 身份高的离主桌近 , 身份低的离主桌远
【单选题】Air chambers are usually fitted to reciprocating pumps in order to _____.
A.
increase discharge pressure
B.
increase suction vacuum
C.
develop pulsation flow
D.
keep a steady rate of flow
【单选题】Cargo on deck,plants and live animals are usually received,handled,carried,kept and discharged at ______.
【单选题】车削外圆表面,经济精度为IT8~IT7,经济粗糙度为1.6~,0.8μm时,因采用的加工路线。为()
【单选题】如图所示小轴零件,毛坯为普通精度的热轧圆钢,批量生产,其外圆表面的加工路线为粗车—精车—磨削,则其磨削工序的经济精度为( )
【单选题】Which of the following should be recorded in Oil Record Book Part Ⅰ?
A.
Non automatic discharge overboard of machinery space bilge water
B.
Automatic discharge overboard of machinery space bilge water
【简答题】用方框中所给词组的适当形式填空。 go off; take place; take away; compared to; depend on 1. Don't _______ your parents all the time. You should work by yourself. 2. Huanghe Road is quite busy _______ Jiaozhou Road. ...