丰田公司质量管理小组的特点有()。A.自主性 B.准确性 C.自发性 D.灵活性 E

甲公司取得了一张见票后定期付款汇票，其行使票据权利过程中遇到了一些问题，如果你是律师，甲公司向你咨询，下列哪些意见可以提供：

A．见票后定期付款汇票无须提示承兑，可以直接向付款人付款

B．甲公司应当在该汇票出票日起1个月内向付款人提示承兑

C．如果甲公司未能在规定期限内及时提示承兑，甲公司还可以向其前手行使追索权

D．付款人要求甲公司履行义务后付款，可以认为是付款人承兑汇票

风湿性二尖瓣狭窄最典型的体征是

A．心尖部收缩期吹风样杂音
B．胸骨右缘第二肋间舒张期叹气样杂音
C．胸骨左缘第三肋间舒张期叹气样杂音
D．胸骨左缘第二肋间舒张期隆隆样杂音
E．心尖部舒张期隆隆样杂音

If your preschoolers turn up their noses at carrots or celery, a small reward like a sticker for taking even a taste may help get them to eat previously disliked foods, a UK study said.

Though it might seem obvious that a reward could encourage young children to eat their vegetables, the idea is actually controversial, researchers wrote in the American Journal of Clinical Nutrition. That’s because some studies have shown that rewards can backfire and cause children to lose interest in foods they already liked, said Jane Wardle, a researcher at University College London who worked on the study. Verbal praise, such as “Brilliant! You’re a great vegetable taster,” did not work as well.

The study found t hat when parents gave their small children a sticker each time they took a “tiny taste” of a disliked vegetable, it gradually changed their attitudes. The children were also willing to eat more of the vegetables-either carrots, celery, cucumber, red pepper, cabbage or sugar snap peas-in laboratory taste tests, the study said.

Researchers randomly assigned（分派）173 families to one of these groups. In one, parents used stickers to reward their children each time they took a tiny sample of a disliked vegetable. A second group of parents used verbal praise. The third group, where parents used no special vegetable-promoting methods, served as a “control”.

Parents in the reward groups offered their children a taste of the “target” vegetable every day of 12 days, Soon after, children in the sticker group were giving higher ratings to the vegetables-and were willing to eat more in the research lab, going from an average of 5 grams at the start to about 10 grams after the 12-day experience. The turnaround also seemed to last, with preschoolers in the sticker group still willing to eat more of the once disliked vegetable three months later.

Why didn’t the verbal praise work? Wardle said the parents’ words may have seemed “insincere” to their children.

小题1:The purpose of writing the passage is       .

A．to introduce a practical method of making children eat vegetables

B．to show the procedure of an experiment on children’s diet

C．to explain why children hate to eat vegetables

D．to present a proper way of vernal praise to parents小题2:The underlined word “backfire” in Paragraph 2 probably means “           ”.

A．shoot from behind the back

B．make a lire in the hackyard

C．produce an unexpected result

D．achieve what was planned小题3:According to the passage, which of the following statements is true?

A．Most children are born to dislike carrots or celery.

B．It remains a question whether rewarding is a good way to get children to eat vegetables.

C．Oral praise wokrs quite well in encouraging children to eat vegetables.

D．Children in the sticker group will never lose interest in eating vegetables.小题4:How did the researchers get their conclusion from the experiment?

A．By comparison.

B．By asking questions.

C．By giving examples,

D．By discussion.小题5:What can we learn from the last paragraph?

A．Children like rewards, not verbal praise.

B．Parents should praise their children in a sincere tone.

C．Children are difficult to inspire.

D．Parents should give up verbal praise.

前牙反骨型分类，骨骼Ⅲ型是（）

A.ANB≥0°

B.ANB<2°

C.ANB<4°

D.ANB<0°

E.ANB<5°

已知R1=5、R2=10，把R1和R2串联后接入220伏电源，R1上的分压应为（）。

A、U₁=73.3V

B、U₁=60.3V

C、U₁=110V

D、U₁=30.3V