分包商在施工现场的协调管理工作应由（）。A、业主负责 B、监理工程师负责 C、总包商负责

患者，男性，30岁，左舌缘疼痛1周就诊，有类似病史3年，每个月发作一次，发作部位不固定，10天左右可自行愈合。检查发现左舌缘、右颊黏膜共有3个圆形溃疡，直径分别为2mm、2mm、3mm，溃疡周边有红晕，表面覆有浅黄色假膜。

患者否认其他部位损害和系统疾病史，可用于治疗该疾病的药物和方法有（）。

A.锡类散

B.西瓜霜

C.冷冻

D.阿昔洛韦片

E.氟康唑

F.链霉素

G.微波

H.地塞米松片

什么叫衬垫比例和衬垫方式？

1851年底，洪秀全于以下哪一地区分封诸王（）

A、南京

B、武汉

C、岳州

D、永安

Feeling anxious Your mood may actually change how your dinner tastes, making the bitter and salty flavors recede, according to new research. This link between the chemical balance in your brain and your sense of taste could one day help doctors to treat depression. There are currently no on-the-spot tests for deciding which medication will work best in individual patients with this condition. Researchers hope that a test based on flavor detection could help doctors to get more prescriptions right first time.

It has long been known that people who are depressed have lower-than-usual levels of the brain chemicals serotonin or noradrenaline, or in some cases both. Many also have a blunted sense of taste, which is presumably caused by changes in brain chemistry. To unpick the relationship between the two, Lucy Donaldson and her colleagues at the University of Bristol, UK, gave 20 healthy volunteers two antidepressant drugs, and checked their sensitivity to different tastes. The drug that raised serotonin levels made people more sensitive to sweet and bitter tastes, the team reports in the Journal of Neuroscience. The other, which increased noradrenaline, enhanced recognition of bitter and sour tastes.

In healthy people, volunteers whose anxiety levels were naturally higher were less sensitive to bitter and salty tastes. "What hasn’t been done beore is to look precisely at which tastes are affected in depression," says Donaldson. Now the results are in, "we can discriminate between the chemicals and the tastes that seem to be altered," she says. Testing sensitivity to sweet and sour tastes could potentially help doctors to pick up on which chemicals are dipping, guiding them when choosing which drug to rectify the problem.

Currently, doctors rely on physical and emotional symptoms to make a best guess at an individual’s imbalance, prescribe a drug and wait about a month to check on any improvement. Good doctors have about a 60-80% success rate in selecting the right drug the first time, says psychiatrist Jan Melichar, a co-author on the paper. Are there any decent tests for prescribing drugs for depression "No. We do a best guesstimate," says Melichar. "I’m excited by this finding because in 3, 5 or 7 years we could have a simple taste test. "

Next, the team plans to perform similar tests in depressed people, and in healthy volunteers given another brain chemical called tryptophan. This chemical would lower the healthy subjects’ levels of serotonin, as actually happens in depressed patients.

The work has also generated interest from flavor houses--companies that develop chemicals for the food and drink industry--who are interested in making foods taste just as sweet with half the amount of sugar. "Theoretically there would be the possibility of enhancing your meal with drugs that affect brain chemicals so that things would taste better--you couid have a ’designer taste tablet’," Donaldson says.

The word "blunted" (Line 2, Paragraph 2) most probably means （）

A. sharp

B. painful

C. insensitive

D. sweet

图中太阳光从右侧照射过来，读图完成下列小题。

当晨昏线从CD移向EF时，下列叙述正确的是（）

A.重庆由冬季进入夏季

B.南半球极昼范围增大

C.地球公转速度逐渐加快

D.太阳直射点向北移动