What is the "challenge" the author is talking about in paragraph 2？
A. Children tend to have too much entertainment activities.
B. Internet communications and interactive games are absorbing too much time and energy of the children.
C. The children planed their time and activities in a horrible way.
D. To arrange the media entertainment and other activities in a reasonable way.
查看答案
A．There is just about enough time to do the jobB．The desk has never been so orderly.C．
A. There is just about enough time to do the job
B. The desk has never been so orderly.
C. The clock on the desk needs to be set.
D. The desk really needs organizing.
行政机关应当事先告知当事人有要求举行听证的权利才能做出行政处罚决定的是E．
According to the passage, how are ants guided by trail pheromones？
A. They concentrate on the smell of food.
B. They follow an ant who is familiar with the trail
C. They avoid the vapor spaces by moving in a straight line.
D. They sense the vapor through their antennae.
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