【单选题】According to the conversation which statement about the name of the White House is True?
A.
It became official before President Theodore Roosevelt had it engraved upon his stationery.
B.
It derives the name from the color of the building.
C.
The building was restored after being burned in 1814, so the smoke - stained gray stone walls were painted white.
D.
Actually the cognomen 'White House' was applied to the building some time before it was painte
【单选题】-- Have you moved into the new house? -- Not yet. The rooms _______.
【单选题】液压系统工作时的环境温度较高时,宜选用 ( )
【单选题】Your door needs ___________ . Would you like me to do it for you?
【单选题】Before__________white, the door should be cleaned thoroughly. [ ]
【单选题】一 Have you moved to your new house? 一 Not yet. My house _____. [ ]
【单选题】问题解决的过程大致可以划分为五个阶段,其中首先要做的是( )
【单选题】—_____she come this afternoon? —No, she can't. Because her mother is ill. [ ]
【简答题】液压系统的油温较高或环境温度较高,宜选用()的液压油。