It is essential that the glass ________ thicker on the outside than on the inside and the gap between the panes of glass ________ a minimum of seven centimeters.
A: is, is
B: be, be
C: be, is
D: is, be
A: is, is
B: be, be
C: be, is
D: is, be
举一反三
- Between the outside wall of glass and the two inside walls of glass, there is ______. A: an empty space B: another huge wall C: a triple-glazed wall
- Articles made of pressed glass are thicker than and not as delicate<br/>as ___<br/>made of blown glass. A: those B: them C: are D: were
- The study had three windows, set with little, old-fashioned panes of glass, each with a crack across it.
- ________is made of__________. A: Glass; glasses B: A glass; glass C: Glasses; glass D: A glass; glasses
- How long does it take to make out a glass according to Green Glass Company A: Eight months. B: Ten days. C: Three hours. D: Seven minutes.