皮皮学，免费搜题
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搜题
【简答题】
After learning "Duty-free Sales", you have known lots of famous-brand products such as Channel, Dior and Black Label and some typcially Chinese products. So please choose any itmes (not limited the items mentioned in our textbook) you like, for example, Chang Yu Wine, introduce anything of the brand to us. You may introduce the brand story, the popularity, the function of the product, the history, the price or anything. Please make a speech to introduce the item you choose and share it with us in two minutes at least. You are required to input your homework in mp3 form within one week. When you return to class, please deliver the speech without refering to your manuscript.
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】下图为“世界四大洋主体位置示意图”,请据此回答 连接 1、2两大洋之间最短的海上通道是 ( ) 。
A.
白令海峡
B.
巴拿马运河
C.
马六甲海峡
D.
直布罗陀海峡
【简答题】不等式|x+1|-|x-2|＞k的解集为R，则实数k的取值范围为______．
【简答题】若不等式-x 2 +kx-4＜0的解集为R，则实数k的取值范围是______．
【判断题】在创作实践中，小伤是很常见的，比如被电烙铁烫伤或是被锯子割到一下的，在经常开展创作实践的场所应该要准备创可贴、消毒湿巾、双氧水、洗眼水、洗手液、纱布等急救物品。
A.
正确
B.
错误
【简答题】基本模数是模数协调中选用的基本单位,其符号为 M , 即 1M= 。