下颌尖牙与上颌尖牙的比较中，不正确的是 （） A.下颌尖牙牙冠长而窄 B.下颌尖牙
题型：单项选择题
问题：
下颌尖牙与上颌尖牙的比较中，不正确的是 （）
A.下颌尖牙牙冠长而窄
B.下颌尖牙舌面窝较浅平
C.下颌尖牙牙尖尖锐略偏近中
D.下颌尖牙牙尖顶位于牙体长轴舌侧
E.下颌尖牙牙根细长
题型：单项选择题
For a long time, a boy wondered why his next-desk-pal was always the first in the class, whereas he could only rank the 21st. At home, he asked his mom, “Am I more stupid than other kids? How come I always lag behind? I just can’t come up with an answer.” Mom was aware that her son’s self-respect had been damaged by the ranking system, but she didn’t know what to say to help.
She was tempted (想要) to say that intelligence differs and that yes, her son’s friend really was the smarter boy. But that would have so upset her son. Thank goodness she resisted the temptation to say it.
Her son and his friend went on to high school that year, but despite trying as hard as he could, her son’s friend still outdid him. But she was proud of her boy for his hard work, sincerely proud. It was around this time she decided to take him on a trip to the seaside. On the trip, she at last found an answer for him.
Today her son no longer cares about rankings. He doesn’t have
to, for he himself is now the top of the class – at the top national university he attends. Invited to speak to his old high school, he mentioned a valuable childhood experience: “Once, on a trip to the sea, my mother and I were lying on the beach. She pointed to the sea and said to me: ‘Do you see the seabirds fighting for food out there? When a wave comes near, the little birds rise quickly. The “clumsy” seagulls (海鸥) are far less agile (灵活的) and have to struggle to get away from the wave. But these “clumsy” birds prove to
have the biggest, strongest wings, which open the widest and allow the bird to travel the furthest. When the season changes, they leave for foreign shores, leaving the little birds behind. Son, I have a feeling that you are one of those seagulls.”
小题1: From the first paragraph, we could conclude the mother ______.
A．knew her son was not bright enough
B．saw the negative effects of the ranking system
C．decided to help with her son’s school work
D．was troubled by her son’s low rankings小题2:The mom was glad she didn’t give an answer at first because ______.
A．she knew her son would forget his rankings soon
B．she felt intelligence doesn’t mean everything
C．she knew he was not strong enough for the truth
D．she wanted to avoid another blow to her son’s self-respect小题3:The story conveys the message that ___
___.
a. only rankings show intelligence
b. hard work and confidence can lead to a change in rankings
c. parents should see children’s strengths and encourage them
d. competition between students is good for society
A．bc
B．cd
C．abc
D．bcd小题4: Which of the following would be the best title for the story?
A．How important are rankings?
B．Little birds and seagulls
C．The answer Mom gave
D．Hard work pays off!