皮皮学，免费搜题
登录
搜题
【单选题】
流感病毒感染后免疫力维持时间较短的原因是A.
病毒的抗原性弱
B.
病毒的抗原易于变异
C.
病毒是表面感染
D.
病毒缺乏保护性抗原
E.
病毒是表面感染，且抗原易于变异
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】An introductory sentence to a brief summary of the passage is given below. Complete the summary by adding the THREE answer choices that express the most important ideas in the passage. Some answer cho...
A.
opposition of climates.
B.
fit of continents.
C.
similarities of living animals.
D.
similarities in rocks and ic
【简答题】An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sen...
【简答题】An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sen...
【多选题】An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sen...
A.
Olive oil is used generously and is the main source of fat in the diet.
B.
Different kinds of medicine treating heart disease are included.
C.
Fruits and vegetables are eaten in large quantities.
D.
Meat and dairy products are less consumed than other diets.
E.
It is highly developed as a result of the Mediterranean peoples cooking skill.
【简答题】以下属于自物权的是（ ）。
相关题目：
参考解析：
知识点：
题目纠错 0
发布
