No one expected the entry-phone. When we saw people going up the front path they always knocked, or pressed the illuminated button that activated tubular bells. Finally, getting no answer, they would look around and see the entry-phone.

In a semiconductor material like silicon, something very interesting happens because the current is not only carried by electrons in the conduction band.

Please strike the last sentence.

Thus far, investigators have found that the men visited a PX Mart in Taichung's Wuchi District on Dec. 3 and a PX Mart in Taichung's Qingshui District on Dec. 5. All five men are currently asymptomatic and wore face masks while in these stores.