密尔沃基矫形器用于治疗（） A.先天性马蹄内翻足 B.先天性髋关节脱位 C.特发性脊

用所给词的适当形式填空。

1. He has two ______(box) of old books under his bed.

2. Can you come with ______(we) after school?

3. The ______(eight) story is very interesting.

4. This kind of medicine is ______(cheap) than that one.

5. These skirts are ______(she). Yours are over there.

6. If it ______ (rain), I will take a taxi.

7. ______(read) more is good for your English.

8. The most popular way of ______(get) to school is walking.

9. Hainan is a good place ______ (go) sightseeing.

10. Hurry! The train _______  (leave) in five minutes.

下图为某学生绘制的“中国民族资本主义经济发展曲线图”该图中明显错误的一处是

A．①一②段

B．②一③段

C．③一④段

D．④一⑤段

设有关系R和S，关系代数表达式为R-(R-S)表示的是

A) R∩S
B) R-S
C) R∪s
D) R÷S

AQI与API有什么区别？

下列程序的执行结果是（ ）。　　public class Testdd {　　　public static void main (String args[ ]){　　　　inr a=lO，b=4，c=20，d=6；　　　　　　System．out．println(a++*b+c,--D) ；　　　}　　}

A． x=4，y=3；x=7，y=8

B． x=3，y=4；x=7，y=8

C． x=7，y=8；x=4，y=3

D． x=8，y=7；x=7，y=8