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【单选题】
某粗集料经筛分试验,53mm、37.5mm筛上的通过率均为100%,31.5mm筛上的筛余量为10%,则该粗集料的最大粒径和最大粒径分别为()。
A.
37.5mm,37.5mm
B.
53mm,31.5mm
C.
37.5mm,31.5mm
D.
31.5mm,31.5mm
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举一反三
【判断题】在CorelDRAW软件中,若要等比例缩放对象,需要按住shift键来缩放。
A.
正确
B.
错误
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【单选题】Why do five-year-olds react differently to 'Bonnie wrecks Anns pretend house'?
A.
Because they occupy the stage of moral autonomy.
B.
Because they can distinguish between harmful and harmless acts.
C.
Because they are capable of justify an aggressor's action.
D.
Because they realize that some of the intentionals are excusable.
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【简答题】对 10 名成年人和 10 名幼儿的身高 ( 厘米 ) 进行抽样调查,结果如下: 成年组: 166 169 172 177 180 170 172 174 168 173 幼儿组: 68 69 68 70 71 73 72 73 74 75 计算其标准差并比较哪一组的身高差异大?
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【单选题】—What do you think of the rules? —I think the sixteen-year-olds should be allowed _____ sports after school. [     ]
A.
to play
B.
playing
C.
played
D.
to playing
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【单选题】为了解新媒介对儿童的影响，近日，中国青少年宫协会下属一研究中心对18个中心城市的3万多名3岁-14岁的儿童及其家长进行了调研。调研结果显示：幼儿园时期（3岁-6岁），的孩子开始玩网游；小学中年级时期（9岁-10岁），儿童周末在电子媒介的平均时长达63.57分钟；初中时期（13岁-14岁），使用QQ的孩子达到，其中的孩子有陌生网友。 这段文字意在说明（ ）
A.
新媒介发展影响儿童成长
B.
城市儿童使用新媒介的人数在激增
C.
城市儿童新媒介使用低龄化趋势明显
D.
新媒介已成为儿童的主要娱乐方向
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【判断题】在CorelDRAW软件中,若要等比例缩放图形,必须按住shift键。
A.
正确
B.
错误
查看完整题目与答案
【单选题】【C13】
A.
children
B.
they
C.
five-year-olds
D.
six-year-olds
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【简答题】Can 13-year-olds do something to change the world? Cris Kesz Valdez, 13, from the Philippines believes so. At the age of 7, Valdez set up an organization to give homeless kids things like slippers and...
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【单选题】What shall we do according to the conversation?
A.
Put our three-year-olds together in day-care centers.
B.
Put our 13-year-olds in schools and sports activities.
C.
Put our 80-year-olds in senior-citizen homes.
D.
Mix people of all ages together.
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【单选题】— What do you think of the rules? — I think sixteen-year-olds should be allowed sports after school. [     ]
A.
to play
B.
playing
C.
played
D.
to playing
查看完整题目与答案
相关题目：
【判断题】在CorelDRAW软件中,若要等比例缩放对象,需要按住shift键来缩放。
A.
正确
B.
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【单选题】Why do five-year-olds react differently to 'Bonnie wrecks Anns pretend house'?
A.
Because they occupy the stage of moral autonomy.
B.
Because they can distinguish between harmful and harmless acts.
C.
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D.
Because they realize that some of the intentionals are excusable.
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【简答题】对 10 名成年人和 10 名幼儿的身高 ( 厘米 ) 进行抽样调查,结果如下: 成年组: 166 169 172 177 180 170 172 174 168 173 幼儿组: 68 69 68 70 71 73 72 73 74 75 计算其标准差并比较哪一组的身高差异大?
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【单选题】—What do you think of the rules? —I think the sixteen-year-olds should be allowed _____ sports after school. [     ]
A.
to play
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played
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to playing
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【单选题】为了解新媒介对儿童的影响，近日，中国青少年宫协会下属一研究中心对18个中心城市的3万多名3岁-14岁的儿童及其家长进行了调研。调研结果显示：幼儿园时期（3岁-6岁），的孩子开始玩网游；小学中年级时期（9岁-10岁），儿童周末在电子媒介的平均时长达63.57分钟；初中时期（13岁-14岁），使用QQ的孩子达到，其中的孩子有陌生网友。 这段文字意在说明（ ）
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新媒介发展影响儿童成长
B.
城市儿童使用新媒介的人数在激增
C.
城市儿童新媒介使用低龄化趋势明显
D.
新媒介已成为儿童的主要娱乐方向
查看完整题目与答案
【判断题】在CorelDRAW软件中,若要等比例缩放图形,必须按住shift键。
A.
正确
B.
错误
查看完整题目与答案
【单选题】【C13】
A.
children
B.
they
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five-year-olds
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查看完整题目与答案
【简答题】Can 13-year-olds do something to change the world? Cris Kesz Valdez, 13, from the Philippines believes so. At the age of 7, Valdez set up an organization to give homeless kids things like slippers and...
查看完整题目与答案
【单选题】What shall we do according to the conversation?
A.
Put our three-year-olds together in day-care centers.
B.
Put our 13-year-olds in schools and sports activities.
C.
Put our 80-year-olds in senior-citizen homes.
D.
Mix people of all ages together.
查看完整题目与答案
【单选题】— What do you think of the rules? — I think sixteen-year-olds should be allowed sports after school. [     ]
A.
to play
B.
playing
C.
played
D.
to playing
查看完整题目与答案