黏性流体总水头线沿程的变化为()。
A.保持水平
B.沿程上升
C.沿程下降
D.以上三种情况均有可能
第1题
The old couple decided to______a boy though they had three of their own.
A.adapt
B.bring
C.receive
D.adopt
第2题
The old couple decided to ______ a boy and a girl though they had three of their own.
A.adapt
B.receive
C.bring
D.adopt
第3题
The old couple decided to ______ a boy and a girl though they had three of their own.
A.adapt
B.receive
C.bring
D.adopt
第4题
The old couple decided to ______ a boy and a girl though they had three of their own.
A.adapt
B.bring
C.receive
D.adopt
第5题
The old couple decided to _____ a boy though they already had three of their own.
A.adopt
B.adapt
C.bring
D.receive
第6题
The old couple decided to______a boy though they had three of their own.
A.adapt
B.bring
C.receive
D.adopt
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