用螺旋测微器测量一薄板的厚度,其示数如图1所示,该薄板厚度的测量值为______

题型:问答题

问题:

用螺旋测微器测量一薄板的厚度,其示数如图1所示,该薄板厚度的测量值为______mm;用20分度的游标卡尺测量玻璃管的内径,结果如图2所示,则玻璃管内径的测量值为______cm.

考点:游标卡尺螺旋测微器
题型:问答题

肾功能障碍的病因不包括()

A.过敏性紫癜性肾炎

B.肾毒性造影剂

C.大量饮水

D.急性肾盂肾炎

E.肾动脉狭窄

题型:问答题

溶液、胶体和浊液这三种分散系的根本区别是

A.是否是大量分子或离子的集合体

B.分散质粒子直径的大小

C.是否能通过滤纸或半透膜

D.是否均一、稳定、透明

题型:问答题

田老师非常注重同学们的平时表现,经常把同学们平时表现以及完成课后作业的情况也纳入教学评价的范畴,请问这属于()评价。

A.相对评价

B.形成性评价

C.定量评价

D.诊断性评价

题型:问答题

Are you interested in seeing the beautiful fall foliage of New England but tired of traffic jams and overbooked hotels Then this year forget the crowds in New England and see the beautiful colors of autumn in the Catskills.
These rugged mountains in New York State, just 90 miles northwest of New York City, are famous for the legendary tales of Rip Van Winkle, and more recently for the summer hotels mat sprang up in the region during the 1940s, 1950s, and 1960s. Families trying to escape the heat of New York City found the Catskills to be the perfect place to stay for a month or so each summer. By the late 1950s there were over 500 resorts and hotels offering nighttime entertainment as well as all kinds of outdoor activities. Famous comedies like Jackie Gleason, Joan Rivers, and Sid Caesar all got their start touring the hotel clubs here. Since the introduction of air-conditioning and cheaper air travel, however, families have stopped coming to the Catskills in such large numbers, chasing instead more distant locations at different times of the year. Many of the Catskills hotels closed in the 1970s, but some remain and have expanded and changed their facilities to meet the needs of today’s visitors.
Currently, there are many activities available to the traveler besides witnessing the changing colors of the leaves. There is an all-organic sheep farm where visitors can see how a traditional sheep farm operates. There are also hundreds of miles of scenic drives in the area. Route 42, for instance, is an excellent site for spotting bald eagles. For more information on vacations in the Catskills, call the office of Public Information.

The author implies that in the Catskills there are few ______.

A. leaves
B. eagles
C. people
D. sheep

题型:问答题

请完善程序(程序文件名:Java_1.java)并进行调试。请在下画线处填入正确内容,然后删除下画线。请勿删除注释行和其他已有的语句内容。
题目要求:
阅读Java_1.java程序,完成程序并运行,结果如下图所示。


源程序:
//Java_1.java,字符串类的startsWith()和endsWith()方法
import javax.swing.*;
public class Java_1
public static void main(String args[])
String strings[]="started", "starting", "ended", "ending";
String output="";
//测试startsWith()方法
for(int i=0; i<strings.length; i++)
if(strings[i].startsWith("st"))output+="\""+strings[i]+"\"开始于\" st\"\n";
output+="\n";
//从字符串的第2个字符开始
for(int i=0; i<strings.length; i++)
if(strings[i].startsWith("art",2))
output+="\""+strings[i]+"\"开始于\" art\"第2个字符位置\n";
output+="\n";
//测试endsWith()方法
for(int i=0; i<strings.length; i++)
if(strings[i].endsWith(" (1) "))
output+="\""+strings[i]+"\"结束于\"ed\"\n";
JOptionPane.showMessageDialog(null, output, "显示字符串类的比较", JOptionPane. (2) );
System.exit(0);


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