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【单选题】
某办公楼现浇钢筋混凝土三跨连续下图所示，其结构安全等级为二级，混凝土强度等级为C30，纵向钢筋采用HRB335级钢筋（ ），箍筋采用HPB300级钢筋（Φ）。作用的恒荷载标准值（含自重）g k =25kN／m，活荷载标准值q k =20kN／m。 提示：计算梁内力时应考虑活荷载的不利布置，连续梁内力系数见下表。连续梁内力系数表（弯矩M=表中系数×ql2，剪力V=表中系数×ql） 说明：已按最新规范将本题“箍筋采用HPB235级钢筋”改成“HPB300级”。 该梁B支座处截面及配筋如下图所示。纵向受拉钢筋为6 22（A s =2280mm 2 ），按荷载效应标准组合计算的梁纵向受拉钢筋的应力σ sk =230N／mm 2 ，纵向钢筋保护层厚度c=25mm。试问，该梁支座处按荷载效应的标准组合并考虑长期作用影响的最大裂缝宽度w max （mm），应与下列何项数值最为接近？（）
A.
0.25
B.
0.29
C.
0.33
D.
0.37
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A.
单不饱和脂肪酸
B.
饱和脂肪酸
C.
甘油
D.
多不饱和脂肪酸
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【单选题】The hunter ____ down and ____ to the farmer that he had___ his gun against the tree. [     ]
A.
lay, lied, laid
B.
lay, laid, laid
C.
laid, lay, lied
D.
laid, lied, lay
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【多选题】An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express important ideas in the passage. Some sentences do...
A.
As the Ice Age ended, hunter-gatherers had to develop new ways of finding food in response to changes in climate and in population.
B.
Tools and weapons became less important as large animals became a less important source of food.
C.
The tools used by hunter-gatherers at the end of the Ice Age were developed for use with specific types of food.
D.
Archaeologists say that hunter-gatherer groups were not affected by the changes in animal populations at the end of the Ice Age.
E.
Hunter-gatherers could avoid food shortages by harvesting resources that were only available in certain seasons and storing them in large amounts.
F.
In many areas, groups that once hunted large animals now used seeds and nuts for their nutritional needs.
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【简答题】化学与人体健康密切相关。一些重要的营养素如：糖类、淀粉、油脂、蛋白质、维生素等，对人类的生命活动具有重要意义。作为处在身体生长发育关键时期的中学生，不能偏食、挑食，每天都要摄入足够、均衡的营养。 (1)某同学平时不吃饭，只吃菜，结果出现乏力、疲倦甚至昏迷等症状，他缺少的营养素是 ； (2)某同学在毕业体检时，检查出蛋白质摄入量不足。假如你是一名医生，你会建议他在平时的饮食中应该多吃的食物是 （任填...
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【单选题】The hunter had to _________ death when he suddenly found out that a bear was coming toward him.
A.
feud
B.
faze
C.
fester
D.
feign
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【单选题】ω-3与ω-6脂肪酸具有重要的营养学意义，下列哪个脂肪酸属于ω-3脂肪酸()
A.
A-亚麻酸
B.
亚油酸
C.
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D.
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【多选题】电气工程施工图中某处标注为BLX-3×4-SC20-WC,以下说法正确的是( )。
A.
BLX表示铝芯橡皮绝缘导线
B.
BLX表示铜芯塑料绝缘导线
C.
3×4表示3根截面积为4mm2的导线
D.
3×4表示4根截面积为3mm2的导线
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【简答题】What ’ s your biggest weakness? Job interviews are an 1 chore that we all need to 2 t o get the role of our dreams. It's easy enough to talk about why you want the job and why you're the 3 person to d...
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【单选题】下列脂肪酸属于饱和脂肪酸的有
A.
油酸
B.
亚油酸
C.
亚麻酸
D.
硬脂酸
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【单选题】下面关于函数的说法不正确的是( )
A.
在不同函数中可以使用相同名字的变量
B.
函数可以减少代码的重复,使程序更加模块化
C.
调用函数时,传入参数的顺序和函数定义的顺序必须不同
D.
函数体中如果没有return,函数返回空值None
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相关题目：
【多选题】下列属于脂肪酸的有( )。
A.
单不饱和脂肪酸
B.
饱和脂肪酸
C.
甘油
D.
多不饱和脂肪酸
查看完整题目与答案
【单选题】The hunter ____ down and ____ to the farmer that he had___ his gun against the tree. [     ]
A.
lay, lied, laid
B.
lay, laid, laid
C.
laid, lay, lied
D.
laid, lied, lay
查看完整题目与答案
【多选题】An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express important ideas in the passage. Some sentences do...
A.
As the Ice Age ended, hunter-gatherers had to develop new ways of finding food in response to changes in climate and in population.
B.
Tools and weapons became less important as large animals became a less important source of food.
C.
The tools used by hunter-gatherers at the end of the Ice Age were developed for use with specific types of food.
D.
Archaeologists say that hunter-gatherer groups were not affected by the changes in animal populations at the end of the Ice Age.
E.
Hunter-gatherers could avoid food shortages by harvesting resources that were only available in certain seasons and storing them in large amounts.
F.
In many areas, groups that once hunted large animals now used seeds and nuts for their nutritional needs.
查看完整题目与答案
【简答题】化学与人体健康密切相关。一些重要的营养素如：糖类、淀粉、油脂、蛋白质、维生素等，对人类的生命活动具有重要意义。作为处在身体生长发育关键时期的中学生，不能偏食、挑食，每天都要摄入足够、均衡的营养。 (1)某同学平时不吃饭，只吃菜，结果出现乏力、疲倦甚至昏迷等症状，他缺少的营养素是 ； (2)某同学在毕业体检时，检查出蛋白质摄入量不足。假如你是一名医生，你会建议他在平时的饮食中应该多吃的食物是 （任填...
查看完整题目与答案
【单选题】The hunter had to _________ death when he suddenly found out that a bear was coming toward him.
A.
feud
B.
faze
C.
fester
D.
feign
查看完整题目与答案
【单选题】ω-3与ω-6脂肪酸具有重要的营养学意义，下列哪个脂肪酸属于ω-3脂肪酸()
A.
A-亚麻酸
B.
亚油酸
C.
油酸
D.
花生四烯酸
查看完整题目与答案
【多选题】电气工程施工图中某处标注为BLX-3×4-SC20-WC,以下说法正确的是( )。
A.
BLX表示铝芯橡皮绝缘导线
B.
BLX表示铜芯塑料绝缘导线
C.
3×4表示3根截面积为4mm2的导线
D.
3×4表示4根截面积为3mm2的导线
查看完整题目与答案
【简答题】What ’ s your biggest weakness? Job interviews are an 1 chore that we all need to 2 t o get the role of our dreams. It's easy enough to talk about why you want the job and why you're the 3 person to d...
查看完整题目与答案
【单选题】下列脂肪酸属于饱和脂肪酸的有
A.
油酸
B.
亚油酸
C.
亚麻酸
D.
硬脂酸
查看完整题目与答案
【单选题】下面关于函数的说法不正确的是( )
A.
在不同函数中可以使用相同名字的变量
B.
函数可以减少代码的重复,使程序更加模块化
C.
调用函数时,传入参数的顺序和函数定义的顺序必须不同
D.
函数体中如果没有return,函数返回空值None
查看完整题目与答案