【简答题】Object: bike Condition: lost Reason: forget to lock it when shopping Solution: pay for it A: I have to say sorry to you. B: What’s up? A: Your ______ is _________. B: That’s OK. A: Just now, I _____...
【单选题】-- I’m in preparationforthe examination and only sleep four hours a day for a fortnight. -- _______. It is not preparation and worse still it will be bad for your health and study.
B.
That’s taking it a bit far
【单选题】—What’s your opinion about my suggestion? —Sorry , I ________.Would you please say it again?
【单选题】某采样点温度为27℃,大气压力为100kPa,现用溶液吸收法测定S02的小时平均浓度,采样时间lh,采样流量0.50L/min,吸收液定容至50.00mL,取5.00mL用分光光度法测知S02为1.0μg,该采样点大气在标准状态下的S0。小时平均浓度为()mg/m 3 。
【单选题】测定大气中的氮氧化物时,用装有5mL吸收液的筛板吸收管采样,采样流量为0.3L/min,采样时间为1h。采样后,样品用吸收液稀释2倍,用比色法测定,与标准曲线对照,得稀释液的浓度为4.0μg/mL。当采样点温度为5℃,大气压为100kPa时,气样中氮氧化物的含量是()mg/m 3 。
【单选题】要延长设备的技术寿命,就必须用( )对设备加以改造。
【单选题】I wouldn’t say your stomach was big, and it is just slightly _____.
【单选题】根据下面对话,回答题。 Dialogue One Julie: Hi, Mary, I know you&39;re an expert in skincare. Mary: Well, I wouldn’t say that, but I do know something.____ 1____ Julie: I think I have an oily skin and there’re al...
A.
Make sure you don’t rub it dry
B.
Also, don’t rub it hard
C.
How can I get rid of them?
D.
So how can I help you?
【单选题】吸收法测定大气中的SO2,吸收液体积为10ml,采样时间1h,采样时气温为30℃,大气压为100.5KPa,色法测得SO2的浓度为0.2mg/L,求大气中SO2的浓度()
【单选题】作为一种对待学习的内部状态,能够影响人对学习活动选择的是