题干

在生物组织还原糖、脂肪、蛋白质的鉴定实验中,对实验材料的选择,下列叙述错误的是

A:甘蔗茎的薄壁组织、甜菜的块根等,都含有较多的糖且近于白色,因此可以用于进行还原糖的鉴定

B:花生种子含脂肪多且子叶肥厚,是用于脂肪鉴定的理想材料

C:大豆种子蛋白质含量高,是进行蛋白质鉴定的理想植物组织材料

D:鸡蛋清含蛋白质多是进行蛋白质鉴定的动物材料

上一题 下一题 0.0难度 选择题 更新时间:2018-10-09 08:08:39

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A

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     When summer arrives, it's not uncommon to get a strong desire for sand and water. But those who can only make day-long trips may find it hard to achieve. Don't worry! Plenty of opportunities for kicking back in the sand exist here in Ohio, although it's far away from the oceans.

East Harbor State Park Beach

1169 N. Buck Rd., Lakeside-Marblehead

     Those looking for a bit of extra space between their blankets and their neighbors' will like this beach. At 1,500 feet long, the sandy strip has a significant amount of real estate(房产)for sunning or relaxing in the shade. Amenities(设施)include a bathhouse, vending machines, grills and picnic tables.

Nickel Plate Beach

Corner of Tiffin Avenue and Nickel Plate Drive, Huron

     Anyone who spends a day at the beach knows that swimming and doing sports on the beach give you a good appetite. Luckily, Nickel Plate Beach offers a variety of dining options nearby, including beachside pizza delivery. Amenities include a sheltered picnic area, charcoal grills, playground equipment and beach volleyball courts.

Main Street Beach

Main Street, Vermilion

     No beach umbrella or chairs? No problem. This beach offers hourly rents of chairs, umbrellas, tables, shade tents and wheelchairs. And with downtown Vermilion only a block away,shops and restaurants are nicely within reach. Amenities include an observation deck and some benches. No lifeguards are on duty.

Kelleys Island State Park Beach

920 Division St. Kelleys Island

     With its gradual water depth, this beach is perfect for young children. The park's campground also includes a playground and a store with snacks and ice cream. Other amenities include a picnic shelter and hiking trails.