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问题 选择题

制备牛肉膏蛋白胨固体培养基的下列操作中，不正确的是[ ]

A．操作流程是计算、称量、溶化、灭菌和倒平板

B．将称好的牛肉膏连同称量纸一同倒入烧杯中再加水、去纸

C．灭菌后向牛肉膏蛋白胨溶液中加2%琼脂，并使其溶解

D．将培养基冷却到约50℃时，在酒精灯火焰附近倒平板

答案

答案：C

完形填空

根据短文内容，用括号内所给动词的适当形式填空，必要时可加助动词或情态动词。

Li Wei is a middle school student. He    小题1:   (live) in Linshu town. Every day he  小题2:  (go) to school by bike. He    小题3:   (not be) to a foreign country before. Next week he  小题4:   (go) to Singapore with his parents. They plan    小题5: (stay) in Singapore for a week.

“Traveling to Singapore is a dream for me for a few months,” Li Wei said to his friend Jim. “ It    小题6:  (come) true soon.” He wants to visit the “Night Safari”. He also    小题7: (want) to try Chinese food in Singapore.
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选择题

在农村社区里负责日常事务管理工作的机构一般是[ ]

A．乡政府

B．街道办事处

C．村委会

D．居委会
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