缉毒特情建设有哪些原则?
参考答案:
缉毒特情建设一般应坚持以下原则:
(1)需要与可能;
(2)积极慎重,隐蔽精干;
(3)统一规划,合理布建;
(4)个别吸收,单线领导。
—How do you study English?
—I study English ______ talking with foreign students.[ ]
A. by
B. in
C. at
D. on
正常人颈总动脉内膜一中层厚度(IMT)()
A.<1.0mm
B.<0.5mm
C.>1.0mm
D.>1.5mm
E.随年龄增加而减小