【判断题】当测量次数 n 越大时,算术平均值越接近被测量的真值,测量精度也越高。
【单选题】Which of the following one is a good way to offer help when others are in trouble? ( )
A.
Let me carry the box for you.
C.
Is there anything I can do to help you?
【单选题】秦女士,60岁,3h前胸骨后压榨样疼痛发作,伴呕吐、冷汗及濒死感而入院。护理体检:神清,合作,心率112次/分,律齐,交替脉,心电图检查显示有急性广泛性前壁心肌梗死。对秦某第l周的护理措施正确的是:
【判断题】One good way to give students feedback on their speaking is to note the mistake and give focused practice later.
【单选题】有关微信朋友圈产品文案,下列说法错误的是( )
【简答题】某堤防为透水地基,堤基渗透系数k 0 =6.7×10 -5 m/s,设计水头H=5m,堤顶宽度B=8m,上游坡坡率m 1 =4.0,下游坡坡率m 2 =5.0,透水地基厚T=30m,堤基单宽渗流量q 2 =1.2×10 -4 m 3 /(s·m),堤身单宽渗流量q 1 =6.7×10 -5 m 3 /(s·m),出逸点高度h 0 =1.22m,背水侧无水。堤防下游沿渗出段y=0.2m及地基段x=0...