【单选题】Don’t disturb me. I_______ letters all morning and have written ten so far.
【简答题】企业投资活动已经活动是不相同的,投资的主要特点表现为,属于企业( )决策、( )管理、投资价值的波动性( )。
【单选题】已知铣刀每齿进给量0.1mm/齿,铣刀刃数4齿、主轴转速1000转/分,求工作台设定的进给速度为多少m/min?
【单选题】关于医院内感染的概念,正确的
E.
入院前处于潜伏期而住院期间发生的感染也属于医院内感染
【单选题】— I wonder if you could go with me to the supermarket. — Don't disturb me. I my experiment report all the morning and haven't finished yet. [ ]
【单选题】—I wonder if you could go with me to the shopping mall. —Don’t disturb me. I ______ my experiment report all the morning and haven’t finished yet.
【单选题】A1 题型】 关于医院内感染的概念,正确的是
E.
入院前处于潜伏期而住院期间发生的感染也属于医院内感染
【单选题】– Shall we go out for lunch? – Don’t disturb me. I ______ the letters all morning and ______ six so far.
D.
have been writing; have written
【单选题】Don’t disturb me. I ___________ letters all morning and have ten so far.
【简答题】Don’t disturb me. I ______ letters all the morning and have written ten so far. A.write B.was writing C.have written D.have been writing