在管壳式冷却器中，冷却水一般应走（）。A、管程 B、壳程 C、无所谓

病历摘要：1岁患儿，母乳喂养未加辅食，1个月来面色逐渐苍白，不爱活动，食欲有所减退。查体：皮肤粘膜苍白，心肺未见异常，肝肋下3cm，脾肋下1cm。血常规：血红蛋白Hb78g/L，红细胞3.0×10¹²/L，RBC中心浅染区扩大，血小板121×10⁹/L，网织红细胞正常。

营养性缺铁性贫血时的实验室诊断要点()

A.红细胞胞体较大，血红蛋白充盈较好

B.血清铁减低，血清铁饱和度小于15%

C.MCV减少，MCH及MCHC减低

D.红细胞降低比血红蛋白降低显著

E.血红蛋白量降低比红细胞数降低显著

F.总铁结合力减低

PST-1200主变保护中，保护启动元件用于开放保护出口继电器的电源及启动该保护故障处理程序。

奇脉见于（）

A.左心功能不全

B.大量心包积液

C.房颤

D.肥厚型梗阻性心肌病

E.主动脉瓣关闭不全

Since we are social beings, the quality of our lives depends in large measure on our interpersonal relationships. One strength of the human condition is our tendency to give and receive support from one another under stressful circumstances. Social support consists of the exchange of resources among people based on their interpersonal ties. Those of us with p support systems appear better able to cope with major life changes and daily hassles. People with p social ties live longer and have better health than those without such ties. Studies over a range of illnesses, from depression to heart disease, reveal that the presence of social support helps people fend off illness, and the absence of such support makes poor health more likely.
Social support cushions stress in a number of ways. First, friends, relatives, and co-workers may let us know that they value us. Our self-respect is strengthened when we feel accepted by others despite our faults and difficulties. Second, other people often provide us with informational support. They help us to define and understand our problems and find solutions to them. Third, we typically find social companionship supportive. Engaging in leisure-time activities with others helps us to meet our social needs while at the same time distracting us from our worries and troubles. Finally, other people may give us instrumental support—financial aid, material resources, and needed services—that reduces stress by helping us resolve and cope with our problems.

Which of the following is closest in meaning to the word" cushions"( Line 1, Para. 2)

A. adds up to



B. does away with
C. lessens the effect of


D. lays the foundation of

下列说法中不正确的一项是（）。

A.教学目标要关注对学生当前和未来都有用的信息

B.教学目标的层次要求不同，学生的学习活动也不同

C.表述教学目标就是表述教材中所涉及的教学内容

D.教学目标使州特定的行为术语来描述