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梨果
时间：2022-01-04 00:35
关键词：
被子植物的分类
农学
植物学综合练习(二)
药用植物学
基础医学
答案解析
<p> 为下位子房的花所形成，下陷的花托与心皮愈合，在形成果实时，花托部分形成可食的部分，子房壁肉质化，外果皮、中果皮与花托间无明显的界限，内果皮木质化较硬。如梨.</p>
相关问题
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
A cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
A cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
最新问题
药用植物的引种驯化，就是通过人工培育，使野生植物变为家栽植物，使外地植物（包括国外药用植物）变为本地植物的过程。主要分（）。
CASE OF DEATH OR SERIOUS INJURY TO A PERSON IN AN ACCIDENT OR SHIPPING DISASTER is（）.
Mainly east 3 or 4 partly cloudy to overcast occasional rain（）slowly south moderate or good.
（）any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local quarantine officer must be notified immediately．
Should any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local Quarantine Officer must be（）immediately.
根据药用植物对温度的要求，可划分为（）、半耐寒药用植物、喜温药用植物、耐热药用植物四类。
Damage to cargo caused by fumes or vapor from liquids,gases, or solids is known as（）.
Masters are（）solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
If he is a common carrier，he is absolutely responsible to the owner of the goods carried （）any loss or damage to them unless caused by an Act of God or the Queen’s enemies，or the inherent vice in the goods themselves，or the negligence of the owner of the goods，or a general average sacrifice.
系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。
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