女性，33岁。明显梗阻性黄疸。B超显示，胆总管及肝内胆管均不扩张。若进一步诊断，选择

不符合中期妊娠水囊放置的是（）

A.放置时间不超过24小时

B.一般放置一个水囊

C.两次放置间隔时间应为48小时

D.注水量为300～500ml

E.放置部位最好在子宫下段

沉桩深度以控制桩尖设计标高为主，当桩尖已达设计标高，而贯入度仍较大时，（）。

A.即可停止锤击

B.应继续锤击，使贯入度达到控制要求

C.继续锤击100mm左右或30～50击，无异常可停锤

D.会同设计与监理研究

It seems parents have long been right. Going to bed early is key to getting enough sleep and helping adolescents feel on top of the world, a new study reported.

A   1  of sleep among youngsters may    2  depression and suicidal (自杀的)thoughts, according to the study by the Columbia University Medical Center.

"Our results are   3  with the theory that inadequate sleep is a risk factor for depression, working with other   4  and protective factors through multiple possible causal pathways to the development of this   5  disorder," said lead author James Gangwisch.

"  6  quality sleep could therefore be a preventative measure against   7  and a treatment for depression," he added in the study   8  in the Friday issue of Sleep magazine.

The study followed the nightly habits of some 15,659 college and high-school students, and   9  those who consistently went to bed   10  midnight had a 24 percent higher risk of depression than those who turned in before 10:00 pm.

Night owls（夜猫子）also ran a 20 percent   11  risk of battling suicidal thoughts, the study added.

The American Academy of Sleep Medicine   12  that adolescents should sleep at least nine hours or more a night. Those who were tucked in before 10:00 pm reported they slept    13  about eight hours and 10 minutes.

But that amount of sleep  14  significantly for those in bed after midnight.

And adolescents who slept five hours or less a night were 71 percent more   15  to suffer depression and 48 percent more     16  becoming suicidal, the study said.

"It is a common perception and societal   17  that adolescents do not need as much sleep as pre-adolescents, yet studies suggest that adolescents may  18  require more sleep," said Gangwisch.

"Studies have found that adolescents do not go to bed   19  enough to make up for earlier school start times, and transitions to earlier school start times have been shown to be   20  with significant sleep deprivation（剥夺）. "

(    ) 1. A. night                B. moderation       C. limit                D. lack

(    ) 2. A. result in           B. lie in                C. come about       D. bring in

(    ) 3. A. opposed           B. mixed              C. related              D. consistent

(    ) 4. A. risk                  B. chance              C. potential           D. reason

(    ) 5. A. mood                      B. body                C. feeling             D. mind

(    ) 6. A. little                B. lack                 C. Adequate          D. over

(    ) 7. A. suffering          B. depression               C. disorder            D. sadness

(    ) 8. A. reported           B. published          C. reflected           D. noted

(    ) 9. A. found                      B. investigated      C. appraised          D. supported

(    ) 10. A. before            B. from                C. by                    D. after

(    ) 11. A. lower             B. higher              C. more                D. less

(    ) 12. A. appeals           B. recommends     C. calls                 D. plans

(    ) 13. A. on average      B. in place            C. ahead of           D. in number

(    ) 14. A. increased               B. disappeared       C. strengthened     D. dropped

(    ) 15. A. likely             B. probable           C. possible            D. perhaps

(    ) 16. A. at sight of       B. at risk of          C. in front of               D. as a result of

(    ) 17. A. wish               B. expectation       C. suggestion               D. attempt

(   ) 18. A. exactly           B. immediately      C. directly            D. actually

(    ) 19. A. early              B. lately                      C. soon                 D. quickly

(    ) 20. A. separated               B. associated         C. divided             D. depended

日光曝晒可以对物品起到消毒杀菌作用，通常将物品放在直射阳光下曝晒（）小时。

A.3小时

B.5小时

C.6小时

D.7小时

E.5~6小时

办事处决定在全市农村合作金融系统开展创建‚平安世博年‛活动的目标（）

A.进一步明确要害岗位操作责任

B.督促技防、物防设施的配备

C.落实基层社（行、部）安全管理责任

D.增加安全保卫处罚金额