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【简答题】
Rewards, if made much of, help _________ positive behavior patterns in children.
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【单选题】_____exciting it is to swim in the sea while it is hot!
A.
How
B.
What
C.
How an
D.
What an
【单选题】对于可编程序控制器电源干扰的抑制,一般采用隔离变压器和()。
A.
直流发电机
B.
交流整流器
C.
交流滤波器
D.
直流滤波器
【单选题】对于较稀软的面坯,下剂时宜采用( )方法。
A.
挖剂
B.
拉剂
C.
切剂
D.
摘剂
【单选题】While sailing under normal weather and sea condition, the basic parameter which is used to restrict the fuel injection of main engine is .
A.
power of main engine
B.
turbine rotation speed
C.
speed of main engine
D.
exhaust temperature
【单选题】While inspecting the steering system at sea, you should check for
A.
air bubbles in the sight glass
B.
any leaks in the system
C.
over-travel in the rudder angle indicator
D.
lost motion in the rams
【单选题】What does one need to accurately determine the longitude while at sea?
A.
The time on board the ship and the latitude.
B.
The time both on board the ship and at a fixed location of known longitude.
C.
The difference between the time the ship left land and the current time at sea.
D.
The distance that the ship sailed in exactly one hour.
【单选题】While sailing in ballast under normal weather and sea condition, the basic parameter which is used to restrict the fuel injection of main engine is
A.
the exhaust temperature
B.
the speed of main engine
C.
the turbine rotation speed
D.
the power of main engine
【单选题】对于较为稀软的面坯,下剂时,宜采用()的方法。
A.
挖剂
B.
拉剂
C.
切剂
D.
剁剂
【单选题】对于可编程序控制器电源干扰的抑制,一般采用隔离变压器和( )来解决
A.
直流滤波器
B.
交流滤波器
C.
直流发电机
D.
交流整流器
【单选题】While we were visiting our navy , the soldiers took us twice ______ in the open sea.
A.
gliding
B.
cruising
C.
piloting
D.
patrolling
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