实事求是、群众路线、独立自主是毛泽东思想的活的灵魂。
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属于Ⅳ型超敏反应的是
A. 初次注入大量抗毒素的马血清引起的血清病
B. 血清性过敏性休克
C. 接触性皮炎
D. 药物过敏性血细胞减少症
E. 共济失调-毛细管扩张症
Cet-4-1.13-Exercise 01G) Back in the 1950s most of us grew up in households where Mom cooked virtually every night. The intention to put a home-cooked meal on the table was pretty much universal. Most people couldn’t afford to do otherwise.
A. People in their fifties and early sixties bear the heaviest family burdens.
B. In the mid-20th century, most families ate dinner at home instead of eating out.
Cet-4-1.13-Exercise 02C) And yet we aren’t cooking. If you eat three meals a day and behave like most Americans, you probably get at least a third of your daily calories outside the home. Nearly two-thirds of us grab fast food once a week, and we get almost 25% of our daily calories from snacks. So we’re eating out or taking in, and we don’t sit down — or we do, but we hurry.
A. We get a fairly large portion of calories from fast food and snacks.
B. Ancient philosophers strongly advise that we do good.
关于抗体产生的再次应答,错误的有
A. 产生抗体量多
B. 在体内持续时间短
C. 抗体亲和力高
D. 以 IgG为主
E. 潜伏期短