六点示教法同时改变TCP相对于法兰盘的位置和姿态,适用于带有角度的工具。
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设A、B、C三个事件相互独立,则AUB 与C
A. 相互独立
B. 不相互独立
C. 相容
D. 不相容
某商店出售的电灯泡由甲乙两厂生产,其中甲厂的产品占60%,乙厂的产品占40%。已知甲厂产品的次品率为4%,乙厂产品的次品率为5%。一位顾客随机地取出一个电灯泡,求它是合格品的概率。(写成小数)
某车间生产了同样规格的6箱产品,其中有3箱、2箱、1箱分别是由甲、乙、丙3个车床生产的,且3个车床的次品率依次为0.1,0.15,0.2,现从这6箱中选一箱,再从中任取一件,取得是次品的概率为。(写成分数)
2.1.2 [While the detrimental effects(不利影响)of noise in classroom situations are not limited to children (experiencing disability)], those with a disability (that affects their processing of speech and verbal communication) could be (extremely) vulnerable.The adverbial clause in the sentence introduced by “while” belongs to
A. an adverbial clause of time(时间状语从句).
B. an adverbial clause of concession(让步状语从句).
C. an adverbial clause of cause(原因状语从句).
D. an adverbial clause of condition(条件状语从句).