答案　B

解析　句意为：为了保持一个健康的环境，中国还是将增长率保持在7%以上为好，或者这个比率可以设置在6%到7%之间。differently不同地，相异地；alternatively或者，二者择一地，要不然；accordingly因此，相应地；conversely相反地，反之。故选B。

possession n.个人财产；所有物；拥有，具有

in possession of占有，控制

in the possession of被......占有；在......控制之下

have/take possession of拥有，占有主语通常是人

come into one's possession 某物落入某人之手

(1)Twenty years ago，his father was very rich and was in possession of a farm.

二十年前，他父亲很富有，并且有一个农场。

(2)We can't take possession of the house until all the papers have been signed.

所有的文件都签字以后，我们才能拥有这套房子。

(3)How did the painting come into your possession？你是怎样得到这幅画的？

Health care is limited as there are no doctors or nurses in the villages-no one has the means to pay them.

在村庄里，卫生保健非常有限，因为既没有医生也没有护士--没有人付得起看病的费用。

(means n．手段，方法

by all means必定，务必；千方百计；不惜一切；[口语]当然可以

by this means＝in this way/with this method用这种办法

by any means无论如何；以一切可能的手段

by means of借助......手段；依靠......方法

by no means绝不，无论如何也不，一点都不置于句首时，句子要部分倒装