皮皮学,免费搜题
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搜题
【单选题】
下列具有强烈天蓝色荧光的是
A.
七叶内酯
B.
C.
麻黄碱
D.
甘草酸
E.
大豆皂苷
拍照语音搜题,微信中搜索"皮皮学"使用
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【简答题】请同学们按照以下要求提交相应资料
【简答题】按照用途分类合金钢可以分为三类,即 、 和 。
【简答题】A.He should consume less salt. B.He should eat less fatty foods. C.He should add more protein products to his diet. D.He should consult to doctors more frequently.
【简答题】合金结构钢按照用途及热处理特点不同可以分为 、 、 、 、 。
【多选题】按照用途不同,可以将钢分为( )。
A.
碳素钢
B.
合金钢
C.
结构钢
D.
工具钢
E.
特殊用途钢
【简答题】A.He should start with a light workout. B.He should go to have a check-up. C.He should eat less fatty foods. D.He should visit a fitness trainer.
【简答题】合金钢按照用途可以分为________、________和________。
【简答题】A.He should consume less salt. B.He should eat less fatty foods. C.He should add more protein products to his diet. D.He should reduce the consumption of sugar.
【简答题】A.He should consume less salt. B.He should eat less fatty food. C.He should add more protein products to his diet. D.He should take in more staple food.
【简答题】合金工具钢按照用途可分为()、()和()。
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