题目内容:
Whatwasoneproblemofnitroglycerine? A.Officebuildingscouldnotbebuiltusingnitroglycerine.
B.Transportingthecompoundfromonefactorytoanothertooktoomuchtime.
C.Thecompoundwasexplosiveandstoringitsafelywasdifficult.
D.Makingdynamitefromthecompoundwastooexpensivetomakeaprofit.
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答案解析: