[填空题]Identical twin girls are more likely than boys to have learning problems.

[填空题]Identical twin girls are more likely than boys to have learning problems.

[填空题]Baby girls talk at an earlier age than boys do because the nerve endings in the left side of brain develop faster in baby girls.

[填空题]Boys are more likely to be left-handed than girls.

[填空题]More than 600 million girls live in poverty in the developing world. Many of them are 1 in school and are not given the same opportunities 2 boys. New programs are aimed 3 helping girls and their families succeed. The unequal treatment of 4 is a big problem in many parts of the globe. But a new campaign hopes to show that girls can be the solution 5 ending poverty, disease and other global issues. It’s called the "girl effect". According to the girl effect theory, one girl can make a positive change in the world, as 6 as she’s given a chance to succeed. An extra year of secondary school can boost a girl’s earnings 7 as much as 25%. If the 600 million girls in the developing world who live in poverty increased their earnings, 8 could lift the world economy. Studies show that women are 9 likely than men to spend their paychecks 10 their families. With women working, children are more likely to stay in school, be better fed and be healthier.

[单项选择]
More teenage girls smoke than boys. Could it be because the tobacco industry plays on their desire to look fun, feel confident and stay thin
Forget BlackBerrys or wedges: the most desirable accessory for huge numbers of adolescent girls today is a cigarette. The trend began in the 1990s, when girls started to overtake boys as smokers; the gap grew to 10 percentage points in 2004 with 26% of 15-year-old girls smoking compared with 16% of boys. The gap has narrowed since but in 2009 girls are still more likely to smoke than boys.
There has long been a synergy (协同作用) between the changing self-image of girls and the tricks of the tobacco industry. Smoking was described by one team of researchers as a way in which some adolescent girls express their resistance to the "good girl" feminine identity. In 2011, when Kate Moss creates controversy by smoking tobacco on the Louis Vuitton catwalk and Lady Gaga breaks the law
A. Sexy smoking teenage girls enjoy great popularity.
B. Top brands tend to hire celebrities in their promotions.
C. Few adolescent girls are satisfied with their appearance.
D. Smoking is still very appealing to many teenage girls.