It takes ______ to produce the first tank top by using 3D printer.
A: 28 hours
B: 14 hours
C: 7 hours
D: 2 hours
A: 28 hours
B: 14 hours
C: 7 hours
D: 2 hours
举一反三
- It takes ______ to produce the first tank top by using 3D printer.
- Q: How many hours is the flight from Toronto to Beijing? A: 18 hours B: 28 hours C: 20 hours D: 19 hours
- The boss expected the writer to work ________ every day. A: A. 2 hours B: B. 3 hours C: C. 4 hours D: D. 5 hours
- Two groups of people are compared in the third study. They are people______. A: with less than5 hours of sleep a night and with 7 to 9 hours of sleep B: who slept 4 hours a night and who slept 4 hours for 2 nights C: with less than 4 hours of sleep a night and with 7 to 9 hours of sleep D: with less than 5 hours of sleep a night and with 8 hours of sleep
- how long will they stay in the museum of Terracotta Army? A: 1 hour B: 2 hours C: 3 hours D: 2.5 hours