It is effective to teach words only through mechanical drills without meaningful practice in authentic contexts.
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We know the effect of English learning depends on the students’subjective initiative and participation.
A. 对
B. 错
Teachers need to create various situations in which students can learn and use words effectively through communication in real contexts.
A. 对
B. 错
关于菌毛的说法错误的是
A. 多见于G-菌菌体表面
B. 在光学显微镜下不能看到
C. 菌毛是细菌的运动器官
D. 普通菌毛是一种黏附结构
E. 性菌毛可传递某些遗传物质
观察微生物的基本设备是()。
A. 电子显微镜
B. 普通光学显微镜
C. 望远镜
D. 50×10放大镜
E. 10×10放大镜