阅读理解。 Schools in the U.S.A are a little

题型:阅读理解

问题:

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.

考点:日常生活类阅读
题型:阅读理解

设函数f(x)=x3﹣ax,x∈R.过图象上一点斜率最小的切线平行于直线x+y=2.

(1)求a的值;

(2)求函数f(x)的单调区间和极值;

(3)已知当x∈(1,+∞)时,f(x)﹣kf(x﹣1)≥0恒成立,求实数k的取值范围.

题型:阅读理解

患者男,32岁,农民,干农活时突然出现全身抽搐,意识丧失,口吐白沫,两眼上翻,面色发绀,10min后恢复正常。4年内曾出现类似发作5次。

为明确诊断应进行的检查项目包括()。

A.颅脑CT

B.颅脑MRI

C.颅脑MRI增强扫描

D.脑电图

E.长程脑电图监测

F.血气分析

题型:阅读理解

对电镀零件,一般认为当镀层小于多少时可用磁粉探伤可靠地进行检验?()

A.0.75mm;

B.0.2mm;

C.0.1mm;

D.1.0mm

题型:阅读理解

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A.甘草酸

B.紫杉醇

C.青蒿素

D.穿心莲内酯

E.槲皮素

题型:阅读理解

在输尿管生理解剖中,其最狭窄的部位是在()

A.肾盂起始部

B.输尿管起始部

C.跨过髂总动脉处

D.进入膀胱壁处

E.骨盆入口处

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