问题

reserves are very important forpreserving many animals and plants, which would _______ run the risk ofbecoming extinct.

A:otherwise
B:therefore
C:though
D:instead

正确答案是：

同类题型

All of us have been to the park ____________________ because both of you are ill at home.

Did you arrive here this morning?—Yes,it was at nine o’clock we came here

We look towards strengthening cooperation with universities all over the world ________ scientific research.

Read this article, _________ you’ll understand that not everything can be bought with money.

I can’t stand (忍受) the air pollution in this city any more. It is getting more terrible.—________. We’ve never had so many factories before.