中长期利率期货交易主要集中在芝加哥期货交易所。（）此题为判断题(对，错)。

A．preference

B．push

C．priority

D．privilege

itive contribution to social and economic development. For example, think about our diversified employees all over the world. They are trained to the same high standards as their colleagues in London and work in an environment that meets our international standards.

(16)

on economic growth and environment conservation still comes second to economic development.

A．Y

B．N

C．NG

Extra heavy government debts will ()a shadow over the country's future economic development.过重的政府债务会给国家未来的经济发展投下阴影。

A、cast

B、cost

C、curse

D、custom

A．Nature has changed our environment over the years.

B．We must avoid wasting resources and polluting our environment.

C．Our resources are nearly used up.

D．Trips to other planets will help eliminate pollution.

Junior Achievement has() different stages in its development.

A、 gone through

B、 got through

C、 got over

A．Nature has changed our environment over the years.

B．We must avoid wasting resources and polluting our environment.

C．Our resources are nearly used up.

D．Trips to other planets will help eliminate pollution.

more control over these factors.()