问题 问答题 简答题

病毒的增殖方式和其他微生物有何不同?

答案

参考答案:

病毒与其他微生物增殖方式的不同点主要是:病毒必需在敏感细胞内增殖;不能自主复制。病毒在敏感细胞内的增殖过程:复制。病毒进入细胞后,细胞的代谢系统会按照病毒核酸的指令,以病毒核酸为摸板进行核酸的复制,并转录病毒mRNA,翻译成病毒蛋白质。性合成的病毒核酸和蛋白质分别构成子代病毒的核心和衣壳,在装配成子代病毒释放到细胞外。病毒的复制具有周期性,即从病毒体侵入细胞到子代病毒体生成释放,称为一个病毒复制周期。过程包括:吸附、穿入、脱壳、生物合成和装配释放。

阅读理解

What is so different about Moisture Surge?

These hydrating formulas (保湿配方) rapidly make thirsty skin smooth and soft. Oil-free and fit for all skin types, they help:

Quickly increase skin’s moisture level with hydrating relief in a high-speed delivery system; Restore skin’s moisture balance; Make up dry lines.

Moisture Surge Extended Thirst Relief

Rapid, long-lasting hydration in a refreshing oil-free gel(胶). Fast-absorbing formula locks in moisture all day and helps skin better resist dry despite great shifts in humidity. Use whenever, wherever needed, under or over makeup, or as a 5-minute moisture mask(面膜).

Moisture Surge Face Water Thirsty Skin Relief

Refreshing facial water. Great for use anytime, anywhere, under or over makeup.

Moisture Surge Extra Refreshing Eye GEL﹡

Cool and comfortable eye gel. Doctor-tested. Use whenever needed, under or over makeup.

Moisture Surge Facial Sheet Mask﹡

Refreshing, pre-moistened full-face sheet mask. Apply 1-2 times a week for a quick moisturizing. To use: unfold and apply to clean skin. Rest for 10 minutes, and then remove the mask.

Moisture Surge Refreshing Eye Mask﹡

Refreshing pre-moistened eye pads(垫). Apply 1-2 times a week to reduce under-eye puffiness(肿) and skin with quick hydration. To use: remove pads from packets and separate. Apply to clean under-eye skin. Rest for 10 minutes, and then remove pads.

Moisture Sheer Tint 15﹡

Refreshing, wash of color that hydrates and makes skin bright with special materials and SPF 15 sunscreen. Three skin-friendly shades wear beautifully alone or under makeup.

WARNING: keep out of eyes.

Stop use if any pain occurs. Keep out of reach of children.

Please pay attention to: ﹡stands for “Not available in all countries. ”

小题1:According to the passage, Moisture Surge is the name of _______.

A.a product of eyes

B.an oil-free formula

C.a sun-blocking cream

D.a series of skin care products小题2:What do we know about Moisture Surge Extra Refreshing Eye Gel and Moisture Surge Refreshing Eye Mask?

A.They can be used at any time.

B.They may be good for eyes.

C.They are a kind of gel.

D.They have been tested on doctors.小题3:Which of the following products can NOT be used over makeup?

A.Moisture Surge Face Water Thirsty Skin Relief.

B.Moisture Surge Extra Refreshing Eye Gel.

C.Moisture Surge Extended Thirty Relief.

D.Moisture Sheer Tint SPF15.小题4:How many products mentioned in the passage can be bought all over the world?

A.Two

B.Four

C.Six

D.Eight小题5:This text is most probably taken from a ______.

A.textbook

B.Doctor’s notebook

C.magazine

D.bottle of medicine

单项选择题