文明收费站标准中要求收费站内无治安隐患,符合“四防”标准,请问“四防”的具体内容是什么?
参考答案:
防火、防盗、防灾害事故、防人为破坏。
More buildings _______ in this city in 2010. [ ]
A. will build
B. will be built
C. has built
D. was built
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