（）太阳能发电规模最大的国家。 A.美国 B.中国 C.德国 D.俄罗斯

变字小魔术。

阅读理解。

     Schools in the U.S.A are a little different from schools in China. Usually, there is no school uniform.

In many Chinese schools, students have school uniforms. Classes start at 8: 30 each morning and the

school day ends at 3:30 or 4 o'clock in the U. S. A. And in China, classes usually start at 8:00 in the

morning and the school day ends at 5:30 in the afternoon. Students have one hour for lunch and two

20-minute breaks each day in the U. S. A.  One break is in the morning, and the other is in the afternoon.

In China, students have two hours' break during lunchtime and ten minutes' break for each class period.

In the U. S. A, students often go to the school cafeteria at lunchtime or at break. They buy snacks and

drinks there. The most popular after-school activities are baseball, football and basketball.

根据短文内容，判断句子正（T）误（F）。

( )1. Students do not usually wear school uniforms in the U. S. A.

(     )2. Students do not have a break in the morning in China.

(     )3. The school cafeteria sells food and drinks to students in the U. S. A.

(     )4.  Baseball is not a popular after-school activity in the U. S. A.

女性，26岁。低热，腹泻3个月，大便为糊样，无脓血。近1周阵发性脐周痛。查体：右下腹触及4cm×5cm包块，质中等，轻触痛，肠鸣音亢进。血沉67mm/h，PPD皮试强阳性，最可能的疾病是（）。

A.肠结核（溃疡型肠结核）

B.盲肠癌

C.右侧卵巢囊肿

D.阑尾炎

E.阑尾周围脓肿

从纬度位置看，东南亚绝大部分所在的温度带是______。