皮皮学，免费搜题
登录
搜题
【简答题】
有一种海洋生物往往会借助海螺壳当自己的居所。它会找一个适合当作自己房子的海螺发起进攻，把海螺弄死、撕碎。然后，钻进去当作自己的新家。沿海渔民俗称这种海洋生物为“白住房”。请问，这种海洋生物是()。 A、寄居蟹 B、海星 C、比目鱼 D、海参
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】根部吸收的矿质元素向上运输主要通过 ,也可横向运到 后再向上运输。
【单选题】Suppose country A, a labor-abundant country, produces only wheat and cloth. The following equations illustrate the prices and costs of wheat and cloth in the country, where the numbers indicate the am...
A.
purchase more of both cloth and wheat than in the absence of trade
B.
purchase more wheat but less cloth than in the absence of trade.
C.
purchase less of both cloth and wheat than in the absence of trade.
D.
purchase more cloth but less wheat than in the absence of trade
【简答题】材料费用的归集与分配.doc
【简答题】该图的度数之和是?