下列变化中，属于物理变化的是（ ） A．电解水 B．白磷自燃 C．食盐结块 D．

窦性心动过速首选用：

A．维拉帕米

B．苯妥英钠

C．利多卡因

D．胺碘酮

E．普萘洛尔

ACTeen-Acting for Teens

The nation’s first on-camera acting program developed for teens(ages 13—15, 16—20). Now celebrating our 30th year. June, July, August, or。Saturday summer academies offer full or part-time curriculum. 14 + electives, including film & television acting, theater, musical theater, auditioning, Shakespeare, speech ＆voice, movement, script writing.

Working grades, small classes(12 maximum per workshop). Safe, convenient location. Application required. Out of town applicants may submit long distance application.

Cost/Week: $500一$649

Indianhead Ranch

Sharpen your H unting Skills over one or two weeks at Indianhead Ranch in Del Rio, Texas. You will experience the outdoors, expand your knowledge in gun safety and learn practical camping hunting and survival skills.

Cost/Week: $1000一$1999

Vermont Adventure Camps

Six-Day Adventure Camps

We offer 8 six-day adventure camps for teens l1 to 13. The kids go stay in rustic cabins at our camping site in Andover VT and on adventures each day. A discount of 10％will be given to the team with over 3 persons.

Two-Week Adventure Camps

We also offer 4 two-week adventure camps for teens 14 to 17. The teens will go on an adventure each day and then come back to our quaint Adventure Lodge.

Cost/Week: $650

International ESL Camp

The site is in close proximity to New York, Philadelphia, and Princeton University. Campers will receive three hours per day of English language instruction, a full range of planned activities including sports, arts and crafts, and weekly excursions.

Cost/Week: $650一$999

小题1:According to the passages, which camp offers hunting skills?

A．Vermont Adventure Camps.

B．Indianhead Ranch.

C．Acting for Teens.

D．International ESL Camp.小题2:Which of the following statements about ACTeeen is TRUE?

A．Applicants out of town cannot submit.

B．There i s no need for application to the camp.

C．The camp lasts until September.

D．Its curriculum includes script writing.小题3:If Tom plans to send his 4 children to join Six-Day Adventure Camps, how much should he pay?

A．2,340.

B．2,600.

C．260.

D．2,860.

下列观点是正确的（ ）。

A．合同是双方法律行为

B．技术发明是单方法律行为

C．发现埋藏物是单方法律行为

D．拾得遗失物是单方法律行为

人口的部门构成、人口的劳动构成、人口的文化构成、人口的民族和宗教构成等及其历史变化是指()。

A．人口的自然变动

B．人口的迁移变动

C．人口的社会变动

D．人口的政策变动

请说出药品存放时应该注意哪几方面：（）。

A、保留药品原包装

B、避光、控温、防潮

C、将药品放在安全可靠的地方，避免儿童拿到不要让儿童拿到

D、注意药品是否过期或变质