___ is too much for the boy to carry.
A. The box weight
B. The box's weight
C. The weight of the box
D. The box of the weight
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What ___ weather we're having these days!
A. nice
B. a nice
C. a bad
D. worse
Amelia Earhart, ____ woman to make a solo flight across the Atlantic Ocean, was born in 1898.
A. was the first
B. she was the first
C. the first who was
D. the first
DOM中的（ ）事件会在网页中的所有元素(文本、图像、CSS样式等)加载完后才触发执行。
A. onblur
B. onmouseover
C. onclick
D. onload
下列选项中，用于接收键盘上输入的数据，实现程序与用户的交互的是（）。
A. alert()
B. confirm()
C. prompt()
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