皮皮学，免费搜题
登录
搜题
【单选题】
属于半必需氨基酸的是A.
甲硫氨酸和苏氨酸
B.
苯丙氨酸和色氨酸
C.
精氨酸和组氨酸
D.
亮氨酸和异亮氨酸
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
【判断题】In the U.S.A. what class you belong to is definitely evident from the neighbourhood you live in, and you can hopelessly change the fact.
A.
正确
B.
错误
【简答题】Work individually, in pairs or in groups and upload your audio file. Tell about the best teacher you had at school. Talk about these and other things in 2 minutes: • who the teacher was • what class y...
【单选题】—What class you ? —We are having a biology class.
A.
do ； have
B.
do; having
C.
are; having
【单选题】— What class you ? — We are having biology class.
A.
do ； have
B.
do; having
C.
are; having
相关题目：