对于可能证明火灾蔓延方向和火灾原因的任何痕迹、物证均应严加保护。
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火灾现场保护人员不准随便进人现场,不准触摸现场物品,不准移动、拿用现场物品。
A. 对
B. 错
Which of the following does not belong to fricatives?
A. /f//v/
B. /θ/ /ð/
C. /k//g/
D. /s//z/
There are three ways to analyze a consonant, which are ________, ________ and ________.
A. places of articulation
B. manners of articulation
C. the state of the vocal cords
Consonants can be divided into ________.
A. plosives
B. nasals
C. fricatives
D. affricates
E. approximants