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【单选题】
胎儿血红蛋白是指A.
HbA
B.
HbH和HbBarts
C.
HbF
D.
HbA2
E.
HbA和HbF
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举一反三
【单选题】Air traffic control units use the term "squawk" when they are assigning an aircraft a(n) _______, e.g. "Squawk 7421".
A.
radio frequency
B.
heading
C.
altitude
D.
transponder code
【单选题】People assume that innovation is just creating something new, but actually it is more than that. It is a(n)______ of doing things.
A.
attitude
B.
altitude
C.
latitude
D.
alternative
【简答题】古代中国以青龙、朱雀、白虎、玄武表四方之神，其中玄武表南方。（ ）
【简答题】古代中国以青龙、朱雀、白虎、玄武表四方之神，其中朱雀表南方。（ ）
【简答题】古代中国以青龙、朱雀、白虎、玄武表四方之神，其中玄武表南方。( )
【简答题】I. Fill in each of the blanks in the following sentences with a word from the box. Change the form where necessary. ( 1*15=15 points ) altitude attitude height 1. He was of medium __________ . 2. At h...
【简答题】鱼腥草的根茎繁殖原理和注意事项?
【单选题】The English language contains a(n) of words which are comparatively seldom used in ordinary conversation.
A.
altitude
B.
latitude
C.
multitude
D.
attitude
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