新生儿缺氧缺血性脑病头颅B超有散在的高回声区，提示____________；局限性高回声区，提示该部位有散在
参考答案：脑实质缺血；缺血性损害
I three apples last night.[ ]
A. eat
B. ate
C. eating
Leaves are found on all kinds of trees, but they differ greatly __ size and shape.
A．on
B．from
C．by
D．in
