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【单选题】
弹性卸料装置除起卸料作用外,还有( )的作用。
A.
卸料
B.
平直度低
C.
压料作用
D.
以上都不对
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【简答题】Box Office Instructions Discounts/ Service charges: We offer children (12 and under), seniors (65 and over) and students (student ID card required) discounts on all seats. Please call the Box Offi...
【单选题】设有二维数组int a[3][4];和指针int *p=&a[0][0];下列哪项是与a[i][j]的作用相同的表示法
A.
*(p+i+j)
B.
*(p+i*4+j)
C.
p[i][j]
D.
*(a+i*3+j)
【单选题】Directions: Read the following passage and decide whether the statements are true or false. Checking out of some hotel rooms can give you a serious case of shock. With taxes, room service, phone charg...
A.
True.
B.
False.
【判断题】Regina owns and operates the Regal Car Wash. She charges $12 per car wash. Her fixed costs are $850 per month, while her variable costs per car wash amount to $2. Regal Car Wash must service 60 cars t...
A.
正确
B.
错误
【多选题】设int i=3,j=4,作j=i++ +j+ ++i运算后,i的值为( ),j的值为( )。
A.
4
B.
5
C.
12
D.
13
【简答题】Directions: Read the following passage and decide whether the statements are true or false. Checking out of some hotel rooms can give you a serious case of shock. With taxes, room service, phone charg...
【单选题】凌霄是借助攀附在棚架等他物上向上生长的()
A.
卷须
B.
气生根
C.
吸盘
D.
茎本身
【判断题】Liner provide a full range of service from loading and unloading to stowing and trimming, but the charges are not included in the freight.
A.
正确
B.
错误
【单选题】接入鼓风机的电阻越大,电流( ),鼓风机转速( )
A.
越大、越大
B.
越大、越小
C.
越小、越小
D.
越小、越大
【简答题】某中学七年级学生共450人,其中男生250人,女生200人.该校对七年级所有学生进行了一次体育测试,并随机抽取了50名男生和40名女生的测试成绩作为样本进行分析,绘制成如下的统计表: (1)请解释“随机抽取了50名男生和40名女生”的合理性; (2)从上表的“频数”,“百分比”两列数据中选择一列,用适当的统计图表示; (3)估计该校七年级体育测试成绩不及格的人数.
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