【单选题】【消耗次数：1】
After several years of hard work, he ______ pass the entrance exam.
①
could
②
can
③
is able to
④
was able to
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_____ you work hard enough _____ you be able to get a PhD degree in three years.
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随机题目
【单选题】
关于单向板肋梁楼盖的结构平面布置，下列叙述不正确的是（）。
①
单向板肋梁楼盖的结构布置一般取决于建筑功能要求，在结构上应力求简单、整齐、经济适用。
②
柱网尽量布置成长方形或正方形。
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主梁有沿横向和纵向两种布置方案，沿横向布置主梁，房屋空间刚度较差，而且限制了窗洞的高度。
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梁格布置尽可能是等跨的，且边跨最好比中间跨稍小（约在10%以内）。