皮皮学，免费搜题
登录
搜题
【判断题】
换流方法有多种, DC/DC变换电路中,不可以采用 器件 换流方法。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】用适当的词填空。 1. We were _____ with joy and jumped _____. (wild) 2. His father died _____ he was only three months old. 3. When did you meet her _____ the first time? 4. It is hard _____ me to work out the...
【单选题】在制备牛肉膏蛋白胨固体培养基的过程中加入琼脂这一理想的凝固剂,下列关于琼脂的说法错误的是 ( ) A .不被所培养的微生物分解利用,对所培养的微生物无毒害作用 B .在微生物生长温度范围内保持固体状态 C .琼脂凝固点低,利于微生物的生长 D .琼脂在灭菌过程中不会被破坏,透明度好,凝固力强
A.
B.
C.
D.
D
【简答题】根据句意填空。 1. We were with joy and jumped . (wild) 2. His father died he was only three months old. 3. When did you meet her the first time? 4. It is hard me to work out the maths problem. 5. Do you know...
相关题目：