题目
题目
多项选择题

Safety Glasses The safety glasses used in chemistry laboratories are usually a clear plastic pair of spectacles designed to stop hazards entering the eye. From the options below, select all that apply.

选项
A.a. Safety glasses should always be worn, even if the wearer uses prescription glasses or contact lenses.
B.b. Safety glasses must be worn unless wearing prescription glasses.
C.c. Safety glasses protect the eyes against spills and projectiles.
D.d. Safety glasses can be removed when you have finished your experiment.
E.e. Students who have already been given one warning for not wearing safety glasses in the laboratory will be asked to leave the laboratory if caught a second time.
F.f. Safety glasses are not required for people wearing contact lenses.
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思路分析
Question restatement: The prompt asks which statements about safety glasses in chemistry labs are true, given a list of options. Option a: 'Safety glasses should always be worn, even if the wearer uses prescription glasses or contact lenses.' This is consistent with standard lab safety practice, which emphasizes that eye protection should not be bypassed by regular eyewear; either safety glasses go over prescription lenses or the lab requires compatible eye protection that still provides full protection. The reasoning is that prescription glasses do not guarantee full protection against splashes or debris, so continuing to wear protective eyewear is prudent. Potential misconception addressed:......Login to view full explanation

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