例句與造句

1. Based on the above data , explain why e . coli ceased growing in the chemically defined medium but continued to grow in the nutrient broth
   根據(jù)上述數(shù)據(jù)，解釋為何大腸桿菌在化學(xué)成份確定的培養(yǎng)基中停止生長，但是在營養(yǎng)肉羹培養(yǎng)基中又恢復(fù)生長。
2. It's difficult to find nutrient broth in a sentence. 用nutrient broth造句挺難的