“尊严来自实力，国家尊严来自国家实力”，我们只有增强以科技、经济为基础的综合国力，拥有强大的国防实力，才能避免在国际社会中受制于人，这也是航天科技工作者肩负的重任，这就是说（)。
A．国家力量是决定国家在国际社会中地位的重要因素。
B．国家力量的变化直接影响国家间关系的变化。
C．国家力量是维护国家利益的基础。
D．国家力量是主权国家赖以生存和发展的基础。

We are all for your proposal that the discussion ______.
A．be put off
B．was put off
C．should put off
D．is to put off

合同中未约定标的，则合同：
A．无效
B．可解除
C．不成立
D．成立

【B4】
A．where
B．how
C．what
D．unless

The former governor withdrew from political life and as __ he was soon forgotten.
A．an end
B．a result
C．an outcome
D．an event

People appreciate __ with him because lie has a good sense of humor.
A．to work
B．to have worked
C．working
D．having worked