问题
单项选择题
发生番茄青枯病时，维管束变褐色，如将病茎横切面检查，略加挤压，有（）黏液溢出。
A.粉红色
B.褐色
C.乳白色
D.黑色
答案
参考答案：C
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发生番茄青枯病时，维管束变褐色，如将病茎横切面检查，略加挤压，有（）黏液溢出。
A.粉红色
B.褐色
C.乳白色
D.黑色
参考答案：C
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| Dear Annie, Thank you for your letter, I'm glad you like your school. I go to school from Monday to Friday. We have four l in the morning and two in the afternoon. We have 2 to do after class. 3 Monday and Wednesday afternoon we 4 sports. On Tuesday afternoon 5 0f us have _ 6 _ singing class, and on Thursday aftemoon some have a 7 class. On Friday afternoon we practise 8__ English. My Chinese friends would like 9 with me in English. They think I am like an English teacher. Isn't it great? On Sundays and Saturdays I don't go to school. Very often I go to the parks and have a good time 10 my family there. | |||
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