【单选题】用微信软件传送文字、语音、图片和视频等信息主要体现的计算机网络功能是(2014)
【单选题】For airplane ground operations, AC power comes from one of these sources: external power panel; auxiliary power unit(APU) generator. For in-flight operations, power comes from an integrated drive gene...
A.
AC means the alternating current
B.
generator means a company that produces electricity to sell to the public
C.
panel means a group of people who discuss topics of interest on television or radio
D.
IDG means a generator drived by the engin directly
【简答题】下列属于结构材料的建筑材料有______。 A.混凝土 B.石灰 C.紫铜止水片 D.木材 E.型钢ADE
【单选题】On two-stroke diesels____ is usually provided because the exhaust gas driven turboblower cannot provide enough air at low engin speeds.
B.
an electrically auxiliary blower
【单选题】影响高血压患者心血管预后的危险因素不包括()
【简答题】关于现金管理中现金使用的限额,下列表述正确的是()A. 开户银行应当根据实际需要,核定开户单位3天至5天的日常零星开支所需的库存现金限额 B. 边远地区和交通不便地区的开户单位的库存现金限额,可以多于5天,但不得超过10天 C. 开户单位需要增加或减少库存现金限额的,应当向开户银行提出申请,由开户银行核定 D. 商业和服务行业的找零备用现金也要根据营业额核定定额,但不包括在开户单位的库存现金限额之...
【判断题】一般细菌喜欢接近中性或偏碱性的环境,霉菌喜欢偏酸性,放线菌喜欢偏碱性。
【单选题】抛物面天线的增益与天线的( )有关且成正比。