将一批粗铜由昆明运到上海精炼，最经济的运输路线是( ) A．_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

将一批粗铜由昆明运到上海精炼，最经济的运输路线是( )

A．成昆线—成渝线—长江航线

B．贵昆线—湘黔线—浙赣线—沪杭线

C．贵昆线—川黔线—长江航线

D．贵昆线—湘黔线—京广线—长江航线

答案

答案：C

根据题意选择线路应考虑两点：一是尽量走水路，由于水路最经济；二是线路尽量短，以节省运费。

选择题

选择相应答语。

A
(    )1. What's that in English?
(     )2. Is this your ID card?
(    )3. What's your family name?
( )4. How do you spell the word?
( )5. What's Anna's telephone number?
(    )6. What color is your pencil case?

B
a. 101-20230346
b. D-I-C-T-I-O-N-A-R-Y, dictionary.
c. It's blue and red.
d. It's a backpack.
e. Brown.
f. Yes, it is.

单项选择题

A．50%

B．60%

C．70%

D．80%