问题
单项选择题
活髓牙钉洞同位型要求钉洞的深度一般为（）
A.0.5mm
B.1mm
C.1.5mm
D.2mm
E.3mm
答案
参考答案：D
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活髓牙钉洞同位型要求钉洞的深度一般为（）
A.0.5mm
B.1mm
C.1.5mm
D.2mm
E.3mm
参考答案：D
| 阅读理解。 | |||
| |||
1. If Hellen calls at 8766588, maybe she wants to ______. | |||
[ ] | |||
| A. play in local football team B. take good care of the baby C. clean and tidy the large house | |||
| 2. When you are 12 years old, you ______ join our football team. | |||
[ ] | |||
| A. can B. can't C. must | |||
| 3. Do you want to join our football team? Please come to Green Park ______. | |||
[ ] | |||
| A. today B. this evening C. at 3 p.m.on Friday | |||
| 4. If Jane makes the large house clean and tidy three times, she'll get ______. | |||
[ ] | |||
| A. $20 B. $60 C. $80 |