【单选题】乘客呼叫乘务员时,前入口走廊顶棚上方的呼叫显示灯()色灯亮,高音铃声,按一下该呼叫乘客座椅上方亮起的呼唤铃即可解除。
【单选题】双光栅测微弱振动位移量实验中,如何寻找音叉的谐振点?
【单选题】Why does the author mention Kodak's invention of the first digital camera?
A.
To show its early attempt to reinvent itself.
B.
To show its effort to overcome complacency.
C.
To show its quick adaptation to the digital revolution.
D.
To show its will to compete with Japan's Fuji Photo.
【单选题】Why does Crusoe’s first attempt at making a canoe fail?
B.
The canoe is too fragile
C.
The canoe is too heavy
D.
Termites eat through the bottom
【单选题】Why does the speaker make this talk?
A.
It's the first lesson.
C.
Instructions are not given.
【单选题】Why does Harker come to Dracula’s castle at the first place?
A.
He is a vampire hunter and wants to eradicate them for good.
B.
He is a young, English lawyer who must visit Count Dracula in order to finalize a transfer of real estate in England.
C.
He is lost in a trip to Transylvania.
D.
His business requires him to travel through the Carpathian Mountains.
【单选题】Why does the author mention Kodak's Invention of the first digital camera ?
A.
To show its early attempt to reinvent itself .
B.
To show its effort to overcome complacency .
C.
To show its quick adaptation to the digital revolution .
D.
To show its will to compete with Japan's Fuji Photo .