Why S-glass is stronger than E-glass? A: The formula is different between S-glass and E-glass. B: S-glass has less impurities than E-glass. C: The diameter of S-glass is smaller than that of E-glass. D: S-glass is processed at higher temperature.

— Excuse me, are these ___ Jane’s?— No, they are mine. A: glass B: glasse C: glasses

It's ______that the glass in the window is _________. A: apparent; transparent B: apparent; apparently C: transparent; apparent

________is made of__________. A: Glass; glasses B: A glass; glass C: Glasses; glass D: A glass; glasses

Listen to the conversation and circle the appropriate letter. What s the closet’s door made of A: glass B: wood C: iron

‌S-glass fibers have higher strength than E-glass fibers.​

中国大学MOOC: Why S-glass is stronger than E-glass?

_____is made of______. A: Glass, glasses B: A glass, glass C: A glass, glasses D: Glasses, glasses

What happened a few days later A: The person’s friend stopped drinking beer. B: The person asked only for half a glass of beer. C: The person asked only for one glass of beer.

- It’s hot. What about having a glass of cold water?-______________. A: Good idea B: Me, too C: That’s right D: No problem