毫针针刺心穴的方向是

A、45°斜刺
B、 平刺
C、 60°斜刺
D、直刺

单项选择题A multimedia journalist_____. A、has the same skill set with a traditional journalist B、interacts with readers and viewers of the news in blogs, chats, or emails C、only works for online news organizations D、does not need to write news stories him herself

单项选择题污水处理厂各处理构筑物的高程布置应遵循哪项原则（ ）