皮皮学，免费搜题
登录
搜题
【单选题】
下列词语中,两个音节都是零声母的是()A.
落叶
B.
温和
C.
如意
D.
安慰
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】我国把实行计划生育作为长期基本国策，主要原因是 [ ]
A.
人口地区分布不均
B.
农村人口比重大
C.
城镇人口数量不断增多
D.
人口增长与社会经济和资源环境的矛盾突出
【单选题】When the trip coil of a circuit breaker is excited by a protective relay, the circuit breaker is ( ).
A.
switched on
B.
switched off
C.
connected to a fault element
D.
turned on
【单选题】某患者，女，39岁，6个月前因外伤致一上前牙脱落，今要求烤瓷桥修复。口腔检查：右上中切牙缺失，间隙无明显异常，牙槽嵴高度无明显异常，较平整。左上中切牙近中切角缺损，未露髓，探稍敏感，叩诊阴性，无松动。右上侧切牙牙冠完好，叩诊阴性，无松动。上下前牙牙龈轻度红肿，易出血，可见少量菌斑及牙石，余牙未见明显异常。下列哪项关于右上侧切牙金瓷冠牙体预备的要求是正确的（）
A.
切端磨除2mm
B.
唇面磨除2mm
C.
牙体预备分次磨除
D.
唇面龈边缘在龈沟底
E.
唇面龈边缘在龈上
【单选题】a protective relay must operate at the ( )speed and must be reliable.
A.
required
B.
slow
C.
quick
【单选题】The protective relay is a sensing device, which ( ) the fault, determines its location.
A.
shunts down
B.
senses
C.
fixes
D.
remove
【单选题】The protective relay disconnects faulted elements in a power system by ().
A.
determining its location
B.
acting as a brain
C.
tripping the proper circuit breakers
D.
sensing the fault
【简答题】It can be known that the writer of the 3rd greeting card lives home.
【简答题】With regard to humoral regulation, which
of the following is false ( )A. humoral regulation is not controlled by the
nervous system B. Through chemicals C. The cells that hormones act on are called...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
