风速器(传感器)安装在观测场内,距地高高度为(),以()为基准部位。

题型:填空题

问题:

风速器(传感器)安装在观测场内,距地高高度为(),以()为基准部位。

考点:地面气象测报上岗考试地面气象测报上岗考试题库
题型:填空题

课堂教学活动是教师职业的最基本的活动。 ( )

题型:填空题

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’s tone in this passage is ______.

A.light and encouraging

B.informative and scientific

C.humorous and skeptical

D.regretful and reminiscent

题型:填空题

如图所示,在光电管两端接上反向电压,当电键K断开时,用光子能量为2.5eV的一束光照射阴极P,发现电流表读数不为零.合上电键,调节滑线变阻器,发现当电压表读数小于0.70V时,电流表读数仍不为零;当电压表读数大于或等于0.70V时,电流表读数为零.由此可知此种阴极材料的逸出功为(  )

A.1.8eV

B.0.7eV

C.2.5eV

D.3.2eV

题型:填空题

下列各项资料中,属于竣工验收依据的是()。

A.可行性研究报告

B.施工图设计文件

C.投标书及其附件

D.工程承包合同文件

题型:填空题

关于升级至iOS7,以下哪项表述正确?()

A.如果已预装好iOS7,则顾客只能使用该操作系统。

B.只要设备与iOS7兼容(如iPhone4),顾客就能免费升级至iOS7。

C.运行iOS任何版本的任何设备均可升级至iOS7。

D.以上都不是

更多题库