化学降解法中，由于化学切割反应并非完全绝对的单一碱基特异性，因此除G,C残基外，A,T残基的位置需结合其他泳道的条带加以推断。

T残基的位置推断需结合的泳道是

A:T组 B:G+A组 C:G组和G+A组 D:C+T组 E:C组和C+T组

所谓加权即重点突出某方面的特性。之所以要加权是因为在一般的成像过程中，组织的各方面特性（如：质子密度、T值、T值）均对MR信号有贡献，几乎不可能得到仅纯粹反映组织一种特性的MR图像，通过利用成像参数的调整，使图像主要反映组织某方面特性，而尽量抑制组织其他特性对MR信号的影响，这就是"加权"。T加权成像是指这种成像方法重点突出组织纵向弛豫差别，而尽量减少组织其他特性如横向弛豫等对图像的影响；T加权成像重点突出组织的横向弛豫差别；质子密度加权像则主要反映组织的质子含量差别。

关于TWI以下叙述错误的是

A:主要反映组织T的差别 B:采用短TR、短TE C:长T的组织呈低信号 D:组织信号与T成正比 E:脂肪呈高信号

所谓加权即重点突出某方面的特性。之所以要加权是因为在一般的成像过程中，组织的各方面特性（如：质子密度、T值、T值）均对MR信号有贡献，几乎不可能得到仅纯粹反映组织一种特性的MR图像，通过利用成像参数的调整，使图像主要反映组织某方面特性，而尽量抑制组织其他特性对MR信号的影响，这就是"加权"。T加权成像是指这种成像方法重点突出组织纵向弛豫差别，而尽量减少组织其他特性如横向弛豫等对图像的影响；T加权成像重点突出组织的横向弛豫差别；质子密度加权像则主要反映组织的质子含量差别。

关于TWI的叙述正确的是

A:长T的组织呈低信号 B:脂肪呈高信号 C:短T的组织呈低信号 D:脑脊液呈低信号 E:骨骼呈高信号

患者女，57岁。胆总管结石。入院行胆总管切开探查，T型管引流术。

术后针对T型管引流的护理措施，不妥的是

A:记录引流胆汁的量、色及性状 B:每日用生理盐水冲洗T型管 C:一般留置2周 D:拔管前经T管胆道造影 E:拔管前夹管观察1~2天

患者女，57岁。胆总管结石。入院行胆总管切开探查，T型管引流术。

若患者出院时仍然不能讲T型管拔除，不妥的出院指导是

A:穿柔软宽松衣物，以防引流管受压 B:避免过度劳动，以防牵拉T管致脱出 C:避免淋浴，以防感染发生 D:更换引流袋注意消毒连接口 E:出现引流异常或管道脱出应及时就诊

ε（3-t）ε（t）=（）

A:ε（t）-ε（t-3） B:ε（t） C:ε（t）-ε（3-t） D:ε（3-t）

Dogs are social animals and without proper training, they will behave like wild animals. They will spoil your house, destroy your belongings, bark excessively, fight other dogs and even bite you. Nearly all behavior problems are perfectly normal dog activities that occur at the wrong time or place or are directed at the wrong thing. The key to preventing or treating behavior problems is that we learn to teach the dog to redirect its normal behavior to outlets that are acceptable in the domestic setting.
? ?One of the best things you can do for your dog and yourself is to obedience train (驯服) it. Obedience training doesn’t solve all behavior problems, but it is the foundation for solving just about any problem. Training opens up a line of communication between you and your dog. Effective communication is necessary to instruct your dog about what you want it to do.
? ?Training is also an easy way to establish the social rank order. When your dog obeys a simple request of "come here, sit," it is showing obedience and respect for you. It is not necessary to establish yourself as top dog or leader of the dog pack (群) by using extreme measures. You can teach your dog its subordinate (从属的) role by teaching it to show submission to you. Most dogs love performing tricks for you to pleasantly accept that you are in charge.
? ?Training should be fun and rewarding for you and your dog. It can enrich your relationship and make living together more enjoyable. A well trained dog is more confident and can more safely be allowed a greater amount of freedom than an untrained animal.

Effective communication between a dog and its owner is ______.

A:essential to solving the dog’s behavior problems B:the foundation for dogs to perform tasks C:a good way to teach the dog new tricks D:an extreme measure in obedience training

? ?下面有3篇短文，每篇短文后有5道题，每题后面有4个选项。请仔细阅读短文，并根据短文回答其后面的问题，从4个选项中选择1个最佳答案。
{{B}}第一篇{{/B}}

? ?Domestic violence—overwhelmingly a male-against-female problem but a major issue in same-sex relationships as well—is a public health dilemma that crosses boundaries of wealth, race and class. A decade ago, the standard question for a woman in an abusive relationship was: "Why don’t you just leave?" But evidence is mounting that "just leaving" can be dangerous; some men become revengeful when a woman stands her ground. This is complicated by the fact that women often feel ambivalent toward their abusers, and want legal intervention one day and not the next. While the basic pattern fits into cultural definitions of masculinity and femininity, abuse is really about power and control. It’s the opportunity, and the entitlement, for the powerful to use force to control the less powerful.
? ?How can such a complex dynamic ever be changed?
? ?"What seems most effective," Merry said, "is a three-layered approach." First, there must be "some kind of punishment for the batterer. In the absence of punishment, other approaches don’t have much impact... Second, there has to be some effort at reform-treatment programs." Over time, educating batterers that their behaviour is not acceptable can change cultural norms. Data suggest that, although many batterers drop out of treatment programs, 80 percent of those who stay stop battering, at least for a year. "Third, there must be mechanisms that focus on the woman’s safety." Shelters help, but so do temporary restraining orders—civil court orders aimed at keeping the batterer away from his victim. Over time, Merry said, "the law acts not just by imposing sanctions but also by creating normative standards for how people ought to treat each other." In recent years, the number of restraining orders has soared in many states, including Massachusetts. Restraining orders may not deter someone how is homicidal but they can work with a "relatively new batterer who has not had a lot of experience with the courts."

For a woman in an abusive relationship, leaving proves dangerous because ______.

A:her leaving may lead to more violence when she returns B:her leaving may mean she has no other way to protect herself C:her leaving may be regarded as a sign of obedience D:her leaving may imply she won’t take legal actions