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【多选题】
关于心壁的描述，正确的是()A.
心外膜由纤维心包构成
B.
由心内膜、心肌层和心外膜组成
C.
心房肌与心室肌相续
D.
心内膜的内皮与大血管的内皮相续
E.
心房肌和心室肌附着于心纤维骨骼
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举一反三
【单选题】"At birth the infant is only a potential human. It must learn how to be human and it learns that in a culturally specific way." This can reflect that _______________________.
A.
Culture is like the water a fish swims in.
B.
Culture is like an iceberg.
C.
Culture is the grammar of our behavior.
D.
Culture is our software.
【单选题】The infant learns to raise his head first, then to raise his chest, then to sit, stand and walk, which reflects the sequence(顺序) of human growth and development.
A.
from top to bottom
B.
from near to far
C.
from rough to fine
D.
from simple to complex
E.
from low to advanced
【简答题】读下图，回答问题。 （1）四幅图中A点在B点的方向分别是_____________、_____________、_____________、_____________。 （2）D图中A点在_____________半球、_____________半球。 （3）B图中B点的经纬度是_____________，在_____________纬度，在_____________带（温度带）。
【单选题】The sense of trust in an infant is under development when ______.
A.
the infant experiences some satisfaction
B.
adults' trust is adequate
C.
the infant learns how to move
D.
the infant is surrounded by people he can recognize
【单选题】What does the sentence 'A bird learns to sing and to fly rapidly at the right time... ? '(Para. 3) mean?
A.
A bird learns to sing and fly after twelve weeks.
B.
A bird learns to sing and fly when it is old enough.
C.
An infant learns to smile and make vowel-like sounds at twelve weeks.
D.
A bird learns to sing and fly fast at a certain stage.
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