土壤耕翻的方式，根据土壤耕作中的耕翻强度不同，可将其分为（）少耕和免耕 A.常规耕翻

下列是一个Java Applet程序，填空使它的功能为计算数组各元素和的平均值。
import java applet．*；
import java awt．*；
public class Testvv extends Applet

public void paint(Graphics g)

int a[]＝1，3，5，7，9，10；
double total＝0.0，ave＝0.0；
for(int i＝0；i＜a.length；i++)
total+＝a[i]；
ave＝total/ 【12】 ；
g．drawstring("ave＝"+ave，30，60)；

One day we invited some friends to dinner. When it was about six o’clock, my wife found that we had little bread. So she asked our five-year-old daughter, Kathy, to buy some. “Here’s a dollar,” my wife said, “get two loaves(条) of bread, if they have it. If they don’t have it, get anything. But hurry!” Kathy hurried off, and we waited and waited. By a quarter past six, all the friends had arrived. But Kathy had not returned. Finally we saw her dancing around the corner with a bright new hula hoop(呼啦圈) whirling(旋转) round her middle. “Kathy!” her mother cried. “Where did you get that hula hoop, and where is the bread?” “Well, when I got to the shop, they had sold all their bread,” answered Kathy. “And you said ‘If they don’t have that, get anything!’”

小题1:One day Kathy’s parents invited some friends to __________.

A．have breakfast

B．have lunch

C．have supper

D．have a party小题2:What did Kathy buy at last?

A．Other food.

B．Nothing.

C．Hula hoop.

D．Two loaves of bread.小题3:Why did she do this?

A．Because the shop had sold all their bread.

B．Because her mother asked her to get anything if they hadn’t had bread.

C．Because she loved playing with hula hoop.

D．All above.

下列长度的三条线段能组成三角形的是[ ]

A．1，2，3

B．3，4，8

C．5，6，10

D．5，6，11

一朵花中，与繁殖后代直接相关的结构是[ ]

A．花瓣

B．蜜腺

C．雌蕊和雄蕊

D．花丝和花药

乾隆帝在位满60年时，把帝位让给了咸丰帝。