材料与水接触时，水分子问的内聚力比材料分子间的相互吸引力大，该类材料称为( )。

Are you looking for some new and exciting places to take your kids to? Try some of these places:

. Visit art museums. They offer a variety of activities to excite your kids' interest. Many offer workshops for making hand-made pieces, traveling exhibits, book signings(签名) by children's favorite writers, and even musical performances and other arts.

. Head to a natural history museum. This is where kids can discover the past from dinosaur models to rock collections and pictures of stars in the sky. Also, ask what kind of workshops and educational programs are prepared for kids and any special events that are coming up.

. Go to a  Youth theater.  Look for one in your area offering plays for child and family visitors. Pre-show play shops are conducted by area artists and educators where kids can discover the secret about performing arts. Puppet (木偶) making and stage make-up are just a couple of the special offerings you might find. 

.Try hands-on science. Visit one of the many hands-on science museums around the country. These science play-lands are great fun for kids and grown-ups alike. They'll keep your child mentally and physically active the whole day through while pushing buttons, experimenting, and building. When everyone is tired, enjoy a fun family science show, commonly found in these museums.

小题1:If a child is interested in the universe, he probably will visit      

A．a Youth theater

B．an art museum

C．a natural history museum

D．a hands-on science museum小题2:What can kids do at a Youth theater?

A．Look at rock collections.

B．See dinosaur models.

C．Watch puppet making.

D．Give performances.小题3:Where does this text probably come from?

A．A science textbook.

B．A tourist map.

C．A museum guide.

D．A news report.

在新中国，国有企业数量的变化一定程度上反映了时代的特征。下列1949-1957年、1957－1978年、1978-1992年、1992-1999年四个阶段全国国有企业数量占全部工业企业总量的比重的变化，与选项有对应关系。其中1978－1992年应是

A．44％—26％

B．26％—53％

C．53％—77％

D．77％—44％

有罪证据是指能够证明犯罪事实存在，犯罪嫌疑人、被告人有罪，或者是加重犯罪嫌疑人、被告人刑事责任的证据。
根据定义，下列属于有罪证据的是( )。

A．甲某作为证人证明被告人杀人不是出于故意，而是正当防卫
B．乙某作为证人证明他所看见的放火者不是被告人
C．丙某作为律师提出被告没有实施所指控的犯罪
D．丁作为被害人认为被告对其进行了故意伤害

记账式债券因为发行和交易无纸化，所以效率高、成本低且( )。

A．流动性高
B．交易安全
C．灵活性高
D．交易方便

首创接种牛痘预防天花的人是（）

A、美国人

B、法国人

C、德国人

D、英国人