肉桂来源于植物肉桂(桂树)Cinnamomum cassia Presl.的干燥()
A.根皮
B.树皮
C.枝皮
D.嫩枝
E.含木脂的树材
A.根皮
B.树皮
C.枝皮
D.嫩枝
E.含木脂的树材
[目的要求]
1.学会判断分生组织和基本组织的形态和种类。
2.学会判断保护组织及气孔、毛茸的基本类型。
3.学会判断分泌组织的基本形态和种类。
4.学会判断机械组织的基本形态,能够区分厚角组织、纤维和石细胞。
5.通过观察实验材料,学会辨识各种导管、管胞、筛管和伴胞的形态。
6.通过观察各种维管束类型,加深对维管束结构的理解。
[仪器试剂] 显微镜、刀片、探针、蒸馏水、间苯三酚、浓盐酸、稀甘油、水合氯醛、70%酒精、碘试液、10%硝酸、10%铬酸。
[实验材料] 洋葱Allium cepa根尖纵切片,天竺葵属植物Pelargonium叶,金丝桃Hypericum monogynum叶,决明Cassia obtusifolia叶,薄荷Mentha haplocalyx叶,川黄柏Phellodendron chinense或关黄柏Phellodendron amurense皮,生姜Zingiber officinale根茎,橘Citrus reticulata皮切片,松树Pinus massoniana茎横切片,蒲公英Taraxacum mongolicum根,薄荷Mentha canadaensis茎或芹菜Apium graveolens叶柄,金鸡纳Cinchona ledgeriana树皮或桂Cinnamomum cassia树皮粉末,解离的棉花Gossypium herbaceum根皮粉末,梨属Pyrus植物果肉或乌饭树Vaccinium bracteatum果实,杏Prunus armeniaca种子,茶Camelliasinensis叶横切片,松树Pinus massoniana茎三种切面切片及解离的松树茎,解离的黄豆芽Glycine max胚根,南瓜Cucurbita moschata、向日葵Helianthus annuus和木兰Magnolia denudata茎纵切片,以及南瓜茎横切片,贯众Cyrtomium fortunei根茎横切片,菖蒲Acorus calamus根茎横切片。
A. 物理链路有问题
B. 接口被管理员shutdown了
C. 参数配置不正确
D. 没大问题,重启路由器就行了
Fitness Magazines Fitness is a funny business. One can only get in(31)_____through motion. But many people spend(32)_____time reading about fitness than trying to(33)_____what they have seen. As such, the world of fitness magazines is still(34)_____robust (有活力的).There is very little that a fitness magazine can(35)_____that a website cannot. However, fitness magazines still have a large(36)_____of readers. Fitness magazines tend to have a few advantages that cannot be(37)_____.First are the fitness tips from real professionals in the(38)_____.The magazines also include(39)_____ and shiny photos. They can help readers to understand the kind of shape that they can get into if they put in the right effort. As long as people want to look(40)_____, fitness magazines will have a purpose. _____ A.more B.bright C.number D.copied E.shape F.written G.quite H.industry I.practice J.never K.offer L.better
_____ A.more B.bright C.number D.copied E.shape F.written G.quite H.industry I.practice J.never K.offer L.better
_____ A.more B.bright C.number D.copied E.shape F.written G.quite H.industry I.practice J.never K.offer L.better
_____ A.more B.bright C.number D.copied E.shape F.written G.quite H.industry I.practice J.never K.offer L.better
_____ A.more B.bright C.number D.copied E.shape F.written G.quite H.industry I.practice J.never K.offer L.better
_____ A.more B.bright C.number D.copied E.shape F.written G.quite H.industry I.practice J.never K.offer L.better
_____ A.more B.bright C.number D.copied E.shape F.written G.quite H.industry I.practice J.never K.offer L.better
_____ A.more B.bright C.number D.copied E.shape F.written G.quite H.industry I.practice J.never K.offer L.better
_____ A.more B.bright C.number D.copied E.shape F.written G.quite H.industry I.practice J.never K.offer L.better
_____ A.more B.bright C.number D.copied E.shape F.written G.quite H.industry I.practice J.never K.offer L.better
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