You are on a multiple-product chemical tanker and will carry cargoes of isophorone,ethylenediamine,and creosote. Which of the following is TRUE? ()
All of these cargoes are compatible
B. Isophorone is incompatible with ethylenediamine but may be stowed adjacent to creosote
C. All of these cargoes are incompatible
D. Ethylenediamine is compatible with isophorone but both are incompatible with creosote
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化妆师()穿高跟鞋。
A. 可以
B. 不可
C. 有时可以
Email的最大特点是即时、全天侯。
A. 正确
B. 错误
决策支持系统是以()、运筹学、控制论和行为科学为基础。
甲亢复发系指________,停药_______又有反复者,主要发生于停药后的_______,______年后则明显减少。