【简答题】某学生用12 mol/L的浓盐酸配制0.10 mol/L的稀盐酸500 mL 。回答下列问题: (1)量取浓盐酸的体积为________mL,应选用的量筒规格为________。 (2)配制时应选用的容量瓶规格为________。 (3)配制时(除容量瓶外)还需选用的仪器主要有量筒、________、________、________和试剂瓶。
【单选题】用 18 mol/L 的浓 H 2 SO 4 4.5 ml 配成 450 ml 的溶液,该溶液的物质的量浓度是 ( )
【单选题】The process of indirect finance using financial intermediaries is called
B.
financial intermediation.
D.
financial liquidation.
【单选题】患者,男性,65岁,在门诊候诊时,突然感到腹痛难忍,出冷汗,四肢冰冷,呼吸急促。护士应( )
【单选题】当交换机之间的链路两端出现速录不匹配时,会导致( )
【单选题】Using the indirect strategy to prepare the reader in a bad-news message
A.
shows insensitivity to your reader.
B.
allows you to confuse or distract the reader.
C.
helps you keep the reader's attention until you can explain the reasons for the bad news.
D.
demonstrates your ability to vary your strategies.
【简答题】服装面料的形成一般包括 _____ 、___、_____ 三个过程,且 每个过程的处理都会影响到面料对人体的服用性能。
【单选题】患者,男性,65岁,在门诊候诊时,突然感到腹痛难忍,出冷汗,四肢冰冷,呼吸急促。