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【判断题】
电子标签系统具有加快拣货速度、降低拣货错误率、免除表单作业等优点。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】From which poem are these lines taken? "Yet this enjoys before it woo, And pamper'd swells with one blood made of two; And this, alas! is more than we would do."
A.
"The Flea"
B.
"The Canonization"
C.
"The Ecstasy"
D.
"The Sun Rising"
【简答题】患者,男,78岁。胃癌晚期,不能进食,给予脂肪乳、氨基酸等输入。为患者输液的主要目的是
【单选题】A recent article suggests that the introduction of the new iPhone 5 increased the demand for iPhone protective cases. The article suggests that these two goods are (最近的一篇文章表明,推出新的iPhone 5增加了对iPhone保护...
A.
substitutes and their indifference curves are close to being straight lines.替代品及其无差异曲线接近于直线。
B.
complements and their indifference curves are close to being straight lines.补充和他们的无差异曲线接近直线。
C.
substitutes and their indifference curves are close to being L shaped.替代品和他们的无差异曲线接近于L形。
D.
complements and their indifference curves are close to being L shaped.补充和他们的无差异曲线接近L形。
【多选题】下列有关蛋白质变性的叙述哪些是正确的?
A.
变性后的蛋白质次级键断裂
B.
变性蛋白质是空间结构被破坏
C.
变性后蛋白质的最主要特点是生物学活性丧失
D.
变性后蛋白质溶液黏度降低
E.
变性后的蛋白质难以被蛋白酶水解消化
【单选题】Two equal magnitude forces are in opposite directions and their lines of action are separated by distance d. These two forces are applied to a solid disk, which is mounted on a frictionless axle. If d...
A.
One force on a line touching the circumference of the disk, the other on a line halfway to the center.
B.
One force on a line at a distance d from the center and the other on a line through the center of the disk.
C.
One force on a line at a distance d/2 from the center of the disk, and the other on a line at a distance d/2 on the opposite side of the center of the disk.
D.
Since all the other orientations give the same torque, choose this answer.
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