A.两者相同
B.2倍
C.4倍
D.8倍
[单选题]A.两者相同B.2倍C.4倍D.8倍
[单选题]A.两者相同B.2倍C.4倍D.8倍
[单选题]A.两者相同B.2倍C.4倍D.8倍
[单选题]A.两者相同B.2倍C.4倍D.8倍
[单选题]A.两者相同B.2倍C.4倍D.8倍
[单选题]A.两者相同B.2倍C.4倍D.8倍
[单选题]A.0B.3C.2D.4
[单选题]A.两者相同B.2倍C.4倍D.8倍
[单选题]A.两者相同B.2倍C.4倍D.8倍
[单选题]A.0B.3C.2D.4