Day 1Developing face masks from history (P5)Choose the best answer:Day 1Developing face masks from history (P5)Choose the best answer:1. According to the text, why were masks invented?A. To reduce ……

face masks from history (P31)Developing face masks from history (P31)1. According to the text, why were masks invented?A. To reduce the risk of infection.B. To protect miners from dust.C. To indicate ……

口罩国标national standard for face masksHaving difficulty choosing a face mask to protect yourself from... 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。 ……

(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 ……

person to patent (注册专利) a protective mask for miners, which was a milestone in face mask history. Masks... oneself from a variety of harmful things. In fact, masks have been helping mankind for centuries. Let ……

the US and Denmark said that people around the world are now using 129 billion face masks every month. That is to say, we use 2.8 million masks every minute!According to Elvis Genbo Xu 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... to protect oneself from a variety of harmful things. In fact, masks have been helping mankind ……

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

masks every month. That is to say, we use 2.8 million masks every minute!Elvis Genbo Xu from... using 129 billion face masks every month. That is to say, we use 2.8 million masks every minute ……

;Asians often wear face masks to prevent one’s own germs or sickness from spreading in public.... Apart from physical protection, masks have evolved into social firewalls among young people ……

face masks to prevent one’s own germs or sickness from spreading in public places. In many... their masks in public. What makes them do so? Asians often wear face masks to prevent one ……

). The face-printed masks have become a huge hit (热销产品) in India. Binesh has sold more than 4,000...-old is a photographer from India. He is making customized (定制的) masks with people’s faces ……