问题

_ human beings use it in a wrong way, like we did with nuclear technology, the advancement of science and technology has never led to decline of human development.

A:While
B:Unless
C:As long as
D:Before;

正确答案是：

同类题型

Please tell me ___________ .

依次填入下列各句横线处的成语，最恰当的一组是（）一位伟人说：“喜欢聆听的民族是一个智慧的民族。” 的民族不喜欢聆听，只喜欢征服，他们的狂妄自大遮挡了他们的视线；的民族不喜欢聆听，只喜欢吹嘘，他们坐井观天，这妨碍了他们的拓展；的民族不喜欢聆听，只喜欢盲动，他们浅尝辄止，这影响了他们的深度。因此，我们要学会聆听。

It’s very nice __________ you__________ my parents your best wishes.

Zhanglin was lost in computer games during his lastyear in high school, otherwise he_______ a student at Beijing University.

When was it________you let out the secret?[ ]