【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."
【简答题】“Heard melodies are sweet, but those unheard / Are sweeter; therefore, ye soft pipes, play on”. These two lines are the poet’s description and appreciation of a ____ ____.
【判断题】The start end and the end end of a center line and a phantom line should be long dashes. And when these two types of lines are very short, they could be replaced by thin solid lines.
【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。
【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.