下列句子没有歧义的一项是 [ ] A、我们在火车上写标语。 B、小王买了一本精装

一个正方体水晶砖，体积为100cm³，它的棱长大约在 [ ]

A.4cm～5cm之间

B.5cm～6cm之间

C.6cm～7cm之间

D.7cm～8cm之间

沙眼是由病原性沙眼衣原体侵入结膜和角膜引起的慢性传染性眼病。急性结膜炎是发生在结膜上一种急性感染，常见有急性卡他性结膜炎（肺炎双球菌、流感杆菌、葡萄球菌等）、过敏性结膜炎、流行性结膜炎（腺病毒）及流行性出血性结膜炎（腺病毒70型）。以下治疗沙眼的药物中，属于处方药的是（）

A.酞丁安

B.红霉素

C.米诺环素

D.利巴韦林

E.磺胺醋酰钠

每题所给的选项中有一个或一个以上的正确答案。

设枫叶公司生产出服装后，由于双方对于服装交货地点和履行费用没有约定而发生争执，该交货地点和履行费用无法达成补充协议的，应如何处理( )

A．应在枫叶公司所在地交货

B．应在绿岛商场所在地交货

C．履行费用应由枫叶公司承担

D．履行费用应由绿岛商场承担

音频适配器的音箱插孔是（）。

A.用于音频输入

B.用于音频输出

C.用于音频的输入和输出

D.就是接音箱

It’s never too early or too late for a parent to become a teacher. In this age of teacher accountability, endless school testing, increased pressure and competition, and the proliferation of "educational" toys, too many people forget that success begins at home.

Freeman A. Hrabowski Ⅲ, president of the University of Maryland, Baltimore County, and co-author of Beating the Odds: Raising Academically Successful African American Males and Overcoming the Odds: Raising Academically Successful African American Young Women, says that in the interviews he and his co-authors conducted, the overwhelming factor in their children’s academic achievement was that parents inspired and envisioned their children’s success. They thought and talked about what would be required to have a .successful child.

"It just makes such a difference when there’s someone in that house working to relate to that child and inspire that child," Hrabowski says. "These parents (of the high achievers discussed) are really inspirational in their commitment to their children."

Professor Barbara T. Bowman, one of the faculty founders of Chicago’s Erikson Institute, an independent institution of higher education that prepares child development professionals for leader- ship, says that Black children must learn in two different cultures-the African-American culture in which they live and the mainstream culture on which school and education are based.

Bowman also says the relationship between children and their parents is critical. "It is the early responsive ness of the caregiver to the infant’s behavior that creates a sense of well-being and optimism that affects the child’s interest in learning," says Bowman, who served as president of the institute from 1994 to last year. "Children who like and want to please the adult learn better what the adult wants them to learn."

In this day of highly competitive testing and the stress of getting high SAT or ACT scores, it’s important also to avoid pressuring or overexposing your child. Your son or daughter is probably already facing stress at school and on the playground. Your role is to help him or her relieve and manage that stress. Help them to understand that life does not end or begin with a test. And while academic success is important, it’s also important to keep everything in perspective. Failure is a relative term in the grand scheme of things. If your child did poorly on a test, but answered a particularly tough question correctly, stress the positive. On the other hand, if schoolwork comes too easily to your child, find other ways to challenge him or her so they understand that life won’t always be that way.

Which one of the following is the best title for the passage（）

A. How to raise a high-achieving child

B. Successful students whose parents are teachers

C. Key factors for children’s success

D. Motivation and challenge: what do children need most