妊娠期最易发生心衰的时期为
A.孕28~30周
B.孕30~32周
C.孕32~34周
D.孕34~36周
E.孕37周以后
参考答案:C
Not far from the school there was a garden, ________ owner seated in it playing chess with his little
grandson every afternoon. [ ]
A.its
B.whose
C.which
D.that
TTL测光即()
A.平均测光
B.多区域测光
C.重点测光
D.透过镜头测光