(),是角色的心理活动、内在情感在脸上的流露和反映
A、面部表情
B、肢体动作
C、行为动作
D、身体神态
参考答案:A
当药卷之间距离大于殉爆距离时,可以用()将药卷串联起来,以确保每个药卷都爆炸。
A、导爆管
B、导火索
C、导爆索
D、非电毫秒雷管
If a reliable estimate of total costs of the contract does NOT exist, which of the following revenue recognition methods should be used()
A. Completed contract method.
B. Percentage-of-completion method.
C. Cost recovery method.