【单选题】女,26岁初潮13岁,月经规则,月经周期,26天,排卵时间一般在月经周期的
【单选题】Which of the following is a plant bacterium used to grow vaccines?
A.
agrobacterium tumefasciens
D.
one that causes diarrhea
【判断题】C3 plant grow slowly in hot, dry weather.
【简答题】选词填空。 grow;plant 1. The students are _____ trees on the hill. 2. They _____ bananas in Hainan. 3. He _____ vegetables. 4. People _____ rice in the south of China.
【简答题】看图,选择对应的句子。 ( ) 1. A. Wait for it to grow. ( ) 2. B. Put the plant in the soil. ( ) 3. C. Water it. ( ) 4. D. Dig the soil.
【单选题】Which of the following is not a plant that can be used to grow vaccines?
C.
agrobacterium tumefasciens
【单选题】It is the best for this kind of plant to grow in ______ is warm and rainy.
【简答题】纪念品店加工一种艺术节比赛奖杯(如图)。加工时,一个有机玻璃圆柱正好可以截成两个这样的奖杯。求一个奖杯的体积。