What is the fifth paragraph mainly about?

A． Why people become short-sighted.

B． Why natural light has a special chemical.

C． Why playing outside is good for one’s eyesight.

D． Why daylight is much brighter than indoor light.

[单选题]The first paragraph is mainly about _______.A． teenagers’ criticisms on their parentsB． teenagers’ ability to deal with crisesC． parents’ dominance over their childrenD． parents’ misunderstandings of their children

[单选题]The second paragraph is mainly about ______.A． international students solve their money problem in different waysB． international students can't study full time because they have to do spare-time jobsC． American students prefer to study in their own

[单选题]What is the text mainly about?A． The research into war history.B． The finding of a forgotten hero.C． The pilots of the two world wars.D．The importance of military studies.

[单选题]What is the text mainly about?A． Fish dieting and human dieting.B． Dieting and health.C． Human dieting.D． Fish dieting.

[单选题]What is the passage mainly about?A． The changes of the author’s attitude to her mother’s English.B． The limitation of the author’s perception of her mother.C． The author’s misunderstanding of “limited” English.D． The author’s experiences of using bro

[单选题]What is the passage mainly about?（ ）A． The changes of the author’s attitude to her mother’s English.B． The limitation of the author’s perception of her mother.C． The author’s misunderstanding of “limited” English.D． The author’s experiences of using

[单选题]What is the conversation mainly about?A． The woman’s study.B． The woman’s friend.C． The woman’s trouble.

[单选题]What is the conversation mainly about?A． Buying some booksB． Repairing a watchC． Finding a place

[单选题]What is the text mainly about?A． Exact campus crime statistics。B． Crimes on or around campuses。C． Effective solutions to campus crime。D． Concerns about kids’ campus safety。

[单选题]What is the text mainly about?A． Fish dieting and human dieting.B． Dieting and health.C． Human dieting.D． Fish dieting.