【单选题】晚发性矽肺是指:
C.
接触一段时间高浓度矽尘后,脱离接触若干年后才出现的矽肺
【单选题】Luckily for us, when we got there the weather ____ to be fine.
【单选题】晚发性矽肺是指
D.
接尘期间未发病,脱离矽肺作业若干时期发现的矽肺
【简答题】It was _____ (luckily) for us to have had plenty of time to enjoy the amazing scenery.
【单选题】--- If he ____, he _____ that food. --- Luckily, he was sent to hospital immediately.
A.
was warned; would not eaten
B.
had been warned; would not have eaten
C.
would be warned; had not eaten
D.
would have been warned; had not eaten
【单选题】v 某建筑工程编制招标控制价。已知无工程设备,分部分项工程费400万元,单价措施项目费32万元,总价措施项目费18万元,其他项目费中暂列金额10万元,暂估材料15万元,专业工程暂估价20万元,总承包服务费2万元,计日工费用为0;则该工程的社会保险费应为( )。
【单选题】下式所示是1mol气体的范德瓦尔斯方程,根据式中信息和你对范德瓦尔斯常量的理解,以下描述中错误的是( )。【图片】
B.
对于一定种类的气体,范德瓦耳斯常量都有确定的值。
【单选题】晚发性矽肺是指
D.
接尘期间X线胸片未显示矽肺改变,脱离矽尘作业若干年后才发生的矽肺
【单选题】晚发性矽肺是指
C.
吸入矽尘期间未发病,脱离矽尘作业后若干年才发生矽肺