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【单选题】
关于亚硝酸钠滴定法的叙述,错误的有A.
对有酚羟基的药物，均可用此方法测定含量
B.
水解后呈芳伯氨基的药物，可用此方法测定含量
C.
芳伯氨基在碱性液中与亚硝酸钠定量反应，生成重氮盐
D.
在强酸性介质中，可加速反应的进行
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【简答题】设当x=θ时，函数f（x）=sinx+2cosx取得最大值，则cosθ=______．
【单选题】The full name of MIT is
A.
Massachusetts Institute of Technicology
B.
Manchester Institute of Technology
C.
Massachusetts Institute of Technology
D.
Machester Institute of Technicology
【单选题】--- How soon will the candidates get their university admissions? --- It may take three weeks for all the applications to be .
A.
withdrawn
B.
delivered
C.
edited
D.
processed
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【单选题】Safety is dependent on orderliness and cleanlinessOrder may be maintained by .
A.
storing all items in an assigned place
B.
storing all items in a common storage container except those ready-for-sea
C.
tagging all items according to their age and then storing them together
D.
disposing of worn-out items
【简答题】设 f(2cosx-1)=1-co s 2 x(x∈[ π 3 ， 2π 3 ]) ，则f（x）的值域为______．
【简答题】Among Institute Cargo Clause A，B，and C，Institute Cargo Clause(C)is the most restricted coverage and covers stranding，grounding，or sinking；derailment of land conveyance；jettison． （ ）
【简答题】设当x=θ时,函数f(x)=sinx-2cosx取得最大值,则cosθ=____.
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