80.____”virtualshops”maylacksee-and-feelsampling,thephenomenalgrowthofcatalogueshopping,TV-and-phonemarketingandphone-bankinginrecentyearsisproofthatsee-and-feelisnottheonlywaytosell.
A. While
B. Ifthat
C. When
D. Which
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81.Weassureyou____thegoodscanbesuppliedfromstock____youorderearly.
A. that,if
B. whether,if
C. that,whether
D. if,that
82.____ourrepresentativecallsonyounextweek,hewillmakeyouanoffer____wefeelsurewillmeetwithyourapproval.
A. When,which
B. Who,which
C. When,withthat
D. Whom,withit
下列哪项描述是不正确的
A. 维生素C有助于铁剂的吸收
B. 铁剂与碳酸氢钠同用不易吸收
C. 铁剂与四环素同用不易吸收
D. 铁剂与稀盐酸同用不易吸收
E. 铁剂与浓茶同用不易吸收
恶性贫血正确的治疗方法是( )
A. 口服VitB12
B. 肌注VitB12
C. 口服叶酸
D. 口服四氢叶酸
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