两个复数乘积的幅角主值等于它们的幅角主值的和.

A、只要补给资源量大就可以了

B、最重要的是储存资源量大，可以取之不竭

C、补给资源和供水资源都很重要

D、只要含水层给水度大，出水快就可以

A、The company's scientific research has been in a leading position in China.

B、The company has become a national leader in China scientific research.

C、The company has been a national leader in scientific research in China.

D、The company's scientific research has become in a leading position in China.

A、提升品牌知名度

B、拓展消费群

C、强化品牌文化

D、快速提升产品价格

A、understatement

B、simile

C、pun

D、metaphor

A、1

B、0

C、1/2

D、-1

A、半群

B、独异点

C、群

D、无正确选项

A、越快

B、越慢

C、相同

D、先慢后快

根据河流排污混合过程段的长度公式，岸边排放与中心排放的混合过程段长度之比为（ ）。

A、0.25

B、0.5

C、2.0

D、4.0

A、A worldwide power can create significant value for the company.

B、A worldwide role can create significant value for the company.

C、A worldwide presence can create significant value for the company.

D、A worldwide place can create significant value for the company.