皮皮学，免费搜题
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【简答题】
What if you cannot make a diagnosis ( 诊断 ) by e-mail? When we receive your e-mail and the doctor feels that he needs to speak to you to discuss your problems, he will call you immediately and we can help you that way. But if we feel it is necessary, we may ask you to have a video consultation to make a diagnosis or to treat you, or even refer you to a specialist.
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【简答题】新鲜有机物料如稻秆、蔗渣等作为无土栽培的基质时,常会因 过高而使作物生长不良,这时,可通过 和 的途径来克服其不良影响。
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