发展中国家孕妇需要补充维他命(1)
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科学60秒:智能手机的妙用
Smart phones can provide music, movie times, bus schedules. They can even make phone calls! And now, they might help ____1____ fuel use while driving. That is, if enough are used in a system call...
科学60秒:大脑绝食引发的后果
Meatloaf, mac-and-cheese or mashed potatoes. We all have our comfort foods. Except for people with anorexia. Food makes them extremely uncomfortable. Perhaps because eating causes a change in br...
乌干达青少年的艺术治疗(1)
Hint: Uganda Gulu Ross Bleckner In recent years, rebel groups in northern Uganda have often kidnapped children. They use boys as soldiers and girls as sex slaves. Some children are later re
G7成员国同意金融行动计划 (1)
七国首脑出席长达一整天的会议,各财长、行长承诺采取联合行动。 Hints: Henry PaulsonThe top officials from Europe, North America and Japan agreed on a joint action to stabilize markets and restore c...