Day 1The history of face masks (P4-5)Choose the best answer:Day 1The history of face masks (P4-5....D. To protect workers from harmful chemicals.2. What was considered a milestone in face mask history ……

China issued a new set of guidelines on April 12 regarding the use of face masks. It’s no longer mandatory to wear face masks when using public transport, according to new guidelines. People ……

person to patent (注册专利) a protective mask for miners, which was a milestone in face mask history. Masks... history. Masks at this stage were similar to gas masks. Later, in 1897, Polish-Austrian doctor Johann ……

(注册专利) a protective mask for miners, which was a milestone in face mask history. Masks at this stage... person to patent (注册专利) a protective mask for miners, which was a milestone in face mask history. Masks ……

for miners, which was a milestone in face mask history. Masks at this stage were similar to gas masks...专利) a protective mask for miners, which was a milestone in face mask history. Masks at this stage were similar ……

mask for miners, which was a milestone in face mask history. Masks at this stage were similar to gas...专利) a protective mask for miners, which was a milestone in face mask history. Masks at this stage were similar ……

  Amid the COVID-19 pandemic, people around the world wear face masks to protect... their own unique face masks.    TEENSAmid the COVID-19 pandemic, people around the world ……

8Passage 8The history of face masks (P30-31)The history of face masks (P30-31)1. According....2. What was considered a milestone in face mask history?A. Using a woven cloth instead of animal ……

patients.Passage 8Passage 8The history of face masks (P30-31)The history of face masks (P30-31)1... workers from harmful chemicals.2. What was considered a milestone in face mask history?A. Using ……

in the masks. 能保护健康的口罩俗称为“face mask”，专业术语称“surgical mask” (医用口罩)或procedure mask。...口罩国标national standard for face masksHaving difficulty choosing a face mask to protect yourself from ……

was a milestone in face mask history. Masks at this stage were similar to gas masks. Later, in 1897, Polish... was a milestone in face mask history. Masks at this stage were similar to gas masks. Later, in 1897 ……

was a milestone in face mask history. Masks at this stage were similar to gas masks. Later, in 1897, Polish... for centuries. Let’s take a look at some mask-related history.Wearing masks is widely believed ……

SARS hit China. People wore masks painted with animals, flowers and even Hello Kitty. History likes... people were wearing loose-fitting (宽松的) face masks, which can help stop fluids spreading from the person ……

between your face and the mask. Change masks as soon as it gets damp, and do not reuse single-use... between your face and the mask. Change masks as soon as it gets damp, and do not reuse single-use masks ……

that there are no gaps between your face and the mask. Change masks as soon as it gets damp, and do not reuse single-use... on your mask and ensure that there are no gaps between your face and the mask. Change masks as soon ……