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【单选题】
下列哪正常成人血清钾的参考值？（）A.
4.0～5.0mmol/L
B.
3.0～5.0mmol/L
C.
3.5～5.5mmol/L
D.
4.0～5.5mmol/L
E.
3.0～6.0mmol/L
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举一反三
【单选题】Companies are creating new tables all the time in order to stay competitive and _____.
A.
attracting new customers
B.
don't lose their customers
C.
increase the number of customers
【简答题】A．Clothes, cooking equipment, old toys, tools, tables and chairs. B．All brand-new things. C．Rugs and lamps. D．Old money, stamps, dolls bottles, baseball cards and so on.
【简答题】最早正式使用“班级”一词的著名教育家是____________。
【单选题】New oak tables are normal goods. What would happen to the equilibrium price and quantity in the market for oak tables if the price of maple tables rises, the price of oak wood rises, more buyers ente...
A.
Price will fall and the effect on quantity is ambiguous.
B.
Price will rise and the effect on quantity is ambiguous.
C.
Quantity will fall and the effect on price is ambiguous.
D.
Quantity will rise and the effect on price is ambiguous.
【单选题】New oak tables are normal goods. What would happen to the equilibrium price and quantity in the market for oak tables if the price of maple tables rises, the price of oak wood rises, more buyers ente...
A.
Price will rise and the effect on quantity is ambiguous.
B.
Quantity will fall and the effect on price is ambiguous.
C.
Quantity will rise and the effect on price is ambiguous.
【单选题】That lawyer ______ the tables this morning by producing some strong new evidence.
A.
turn
B.
turned
C.
turns
D.
turning
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