羊水栓塞是指羊水成分进入母体血液循环而引起的栓塞。()
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造成硅酸盐水泥安定性不良的原因是水泥熟料中含有过多的游离氧化铝
A. 正确
B. 错误
根据大连银行身份信息联网核查业务规定,工作人员在通过联网核查系统办理联网核查业务,经系统反馈核查相符的,()登记联网核查登记簿。
A. 必须
B. 无需
C. 取款业务
D. 开户及存款业务
钻井中要进行以监测地层压力为主的随钻监测,绘出全井地层压力梯度曲线。当发现设计与实际不相符合时,应按审批程序及时申报,经批准后才能修改。但若遇紧急情况,钻井队可先处理,再及时上报。
A. 正确
B. 错误
A number of biological sewage treatment plants are in use at sea but nearly all work on what is called the extended aeration processBasically the consists of oxygenating the liquor by bubbling air through itAccording to the above two sentences, the word "this" means ().
A. a sewage treatment plant
B. the extended aeration process
C. the liquor
D. the bubbling air