叶表皮细胞和保卫细胞在结构上的重要区别是( ) A.细胞形状不一样 B.保卫细胞 发布时间:2017-06-11 23:25 │ 来源:www.tikuol.com 题型:选择题 问题: 叶表皮细胞和保卫细胞在结构上的重要区别是( )A.细胞形状不一样B.保卫细胞中有叶绿体C.保卫细胞中无叶绿体D.两者都无叶绿体
题型:选择题 Before writing a book, the first thing is considering what to say.()A. you must first ponder what to say and what not to be said carefullyB. it’s extremely necessary that you know what to sayC. the first thing is to consider what to sayD. you must first ponder what to say and what not to say 查看答案
题型:选择题 汉译英:“收货人;申请人”,正确的翻译为( )。A.consignee;consignorB.consignor;applicantC.consignor;consigneeD.consignee;applicant 查看答案
题型:选择题 患者男,52岁。反复发生夜间呼吸困难1个月,加重1d就诊。体格检查:血压180/110mmHg,呼吸急促,双肺散在哮鸣音,双肺底细湿啰音,心率130次/min。此患者最需鉴别的是()A.慢性支气管炎还是急性支气管炎B.肺心病还是冠心病C.支气管哮喘还是心源性哮喘D.双肺炎症还是肺间质纤维化E.左心衰竭还是ARDS 查看答案