根据参与形成糖肽键的氨基酸和糖残基种类,糖肽键分为()和()两种。
A. C-N
B. N型
C. O型
D. C-C
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Try to complete the sentecens with the phrases we learnt1. After WWII, women _________________77.3 million babies in the U.S. ,and the birthrate reached a record high.
During the air attacks by Germany Nazis, Londers ______________ in the Underground (地铁)station.
Over time Steven Spielber gained fame (声望)as a Hollywood director (导演)and ___________ in the film industry.
_____________ the situation instead of feeling overwhelmed (被局势控制)or powerless.