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單項(xiàng)選擇題

每次拉豬完畢后，我們都需要對(duì)車輛、預(yù)碎間等地方進(jìn)行消毒，消毒過(guò)程中應(yīng)（）

A.穿戴防護(hù)服
B．佩戴護(hù)目鏡
C．口罩
D．手套等防護(hù)用品

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單項(xiàng)選擇題

In June 2014, the UNESCO designated the Chang’an-Tianshan corridor of the Silk Road as a World Heritage Site, which was submitted jointly by Kyrgyzstan, China and___（）

A.Kazakhstan
B．Tajikistan
C．Uzbekistan
D．Turkmenistan

單項(xiàng)選擇題

In recent years, according to the trade statistics, the export of mechanical and electronic products make up about__ of China’s total merchandise exports every year（）

A.60
B.30
C.40
D.50