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【多选题】
国家采取措施，监测、防御、处置来源于中华人民共和国境内外的网络安全风险和威胁，保护关键信息基础设施免受（），依法惩治网络违法犯罪活动，维护网络空间安全和秩序。A.
攻击
B.
侵入
C.
干扰
D.
破坏
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举一反三
【单选题】听力原文：W: I certainly hope the library will be open this Saturday. M: Here are the library hours! Week days 8 am to 9 pm, on Saturdays 9 am to 5 pm, Sunday closed. When will the library be open on Satur...
A.
8 am to 9 pm.
B.
9 am to 5 pm.
C.
Closed.
【单选题】Great changes ________ in the village in the past two years.
A.
have taken place
B.
had taken place
C.
were taken place
D.
have been taken place
【简答题】当人在寒冷环境中增加产热量的主要方式是（ ）。
【单选题】The rescue team was________the village in order to save the people trapped in the coal mine. [ ]
A.
heading
B.
heading for
C.
heading on
D.
heading upon
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