作霉菌及酵母菌计数，样品稀释时，用灭菌吸管吸取1:10稀释液10ml注入无菌试管中， 发布时间：2021-02-15 12:53 │ 来源：www.tikuol.com 题型：判断题 问题： 作霉菌及酵母菌计数，样品稀释时，用灭菌吸管吸取1:10稀释液10ml注入无菌试管中，另用橡皮 * * 吸管反复吹吸50次，使霉菌孢子散开。
题型：判断题 完型填空。 Bruce likes playing 1 a river. But there 2 a river near his new house. He is not very happy. One day, he asks 3 mother," 4 a river near here?""No, there 5 ",his mother says, "But 6 new house has a garden? ""I don't like 7 "says Bruce. One morning, his mother says " 8 is a beautiful park near here. Bruce, and there 9 two pools in it. We'll go there this afternoon." Bruce is very happy. After lunch, Bruce and his mother 10 the park, and he plays in one of the pools. He has a very good time.( )1.A. at ( )2.A. isn't ( )3.A. her ( )4.A. There is( )5.A. isn't ( )6.A. your ( )7.A. you ( )8.A. They ( )9.A. is ( )10.A. go to B. to B. is B. his B. Are there B. is B. my B. me B. It B. are B. comes to C. in C. aren't C. our C. There areC. aren'tC. our C. them C. This C. isn't C. to D. from D. are D. their D. Is there D. are D. us D. it D. There D. aren'tD. come 查看答案