题目内容

79.Incompensationtrade,wepayforthecostoftechnologicalimportsbydeliveryofendproducts____inprocessingorassemblydeals,wechargeafeeforprocessingrawmaterialsorassemblyofparts.

A. if
B. whether
C. while
D. when

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80.____”virtualshops”maylacksee-and-feelsampling,thephenomenalgrowthofcatalogueshopping,TV-and-phonemarketingandphone-bankinginrecentyearsisproofthatsee-and-feelisnottheonlywaytosell.

A. While
B. Ifthat
C. When
D. Which

81.Weassureyouthegoodscanbesuppliedfromstockyouorderearly.

A. that,if
B. whether,if
C. that,whether
D. if,that

82.ourrepresentativecallsonyounextweek,hewillmakeyouanofferwefeelsurewillmeetwithyourapproval.

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