皮皮学，免费搜题
登录
搜题
【单选题】
Scientists wilt have to ______ new methods of increasing the world's food supply in order to feed more hungry people.A.
catch up with
B.
come up with
C.
keep up with
D.
put up with
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】淀粉是由____聚合而成的多糖,均由α-1,4糖苷键联结而成的为____淀粉,除α-1,4苷键外,还有-1,6苷键联结的为____淀粉。其中较易糊化的为____淀粉。
【简答题】淀粉是由葡萄糖 聚合而成的多糖,均由α-1,4苷键联结而成的为( ) 淀粉,除α-1,4苷键外,还有-1,6苷键联结的为( ) 淀粉。 其中较易糊化的为( ) 淀粉。
【简答题】Twenty-two-year-old Timothy Doner from New York City has been able to speak 23 different languages, including some rare African ones. Timothy began his foreign language education at the age of 13. Att...
【简答题】淀粉是由___聚合而成的多糖,均由α-1,4苷键联结而成的为___淀粉除 α-1,4苷键外,还有 贝塔-1,6苷键联结的为___淀粉。其中较易糊化的为___淀粉。