【单选题】我国首例器官移植是由吴阶平教授于1960年实行的( )。
【单选题】关于IgG的特性,下列哪项是错误的( )
【判断题】Both the Americans and the European people attach great social importance to the midday meal.
【判断题】The group was remarkable and very popular with both African-Americans and blacklisteners.
【单选题】Find out the topic sentence in each of the following paragraphs , mark A, B, C, or D. A. Californians and New Englanders are both Americans . B. They speak the same language and abide by the same fede...
A.
Californians and New Englanders are both Americans .
B.
They speak the same language and abide by the same federal laws .
C.
But they are very different in their way of life .
D.
Mobility, both physical and psychological, has made a great impression on the culture of Californians; lack of mobility is a mark of the customs and morality of New Englanders.
【单选题】唯一能通过胎盘,可由母体传递至胎儿血循环的抗体,在新生儿抗感染免疫中发挥重要作用的抗体类型是()。
【单选题】Choose the best topic sentence for the following paragraph: The Americans and the British not only speak the same language but also share a large number of social customs. For example, in both America...
A.
P eople shake hands when they meet each other for the first time.
B.
Promptness is important both in England and in America.
C.
The Americans and the British not only speak the same language but also share a large number of social customs.
D.
most English men will open the door for a woman or offer their seats to a woman, and so will most Americans.