这份工作可能要长期驻外,你怎么对待(针对外交工作的提问)?
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The foreigners had just left the museum ________ they heard a bomb explode at the exit.
A. before
B. since
C. as soon as
D. when
can result in a variety of approaches to everyday business activities such as the way in that
Which of the following correctly describes the English phoneme /t?/?
A voiceless alveolar fricative.
B. A voiceless post-alveolar affricate.
C. A voiced palatal affricate.
D. A voiced alveolar fricative.
现代密码学的一个基本原则是:一切密码寓于()之中。
A. 密文
B. 秘钥
C. 加密算法
D. 解密算法