【单选题】【消耗次数：1】
7.The key ___ on the table when I leave.
①
was left
②
will be left
③
is left
④
has been left
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相关题目
【单选题】
The key ___ on the table when I leave.
①
was left
②
will be left
③
is left
④
has been left
【单选题】
—Have you searched the sitting room for your key?
—No. It was in the study________ I remember I left it.
①
which
②
where
③
that
④
as
【单选题】
He left in such a hurry that I _______ had time to thank him.
①
almost
②
even
③
hardly
④
nearly
【单选题】
Before I left on the trip,I [填空]hard and got very fit.
①
had trained
②
trained
③
train
④
training
【单选题】
Visitor: How do I get to the bank? I have no knowledge of this area. Policeman: Cross the road and turn left at the other side. __________ for about 100 meters and the bank is to your left.
①
Continue your walking
②
Keep going straight
③
Go along
④
Go on walking
【单选题】
Visitor: How do I get to the bank? I have no knowledge of this area. Policeman: Cross the road and turn left at the other side. __________ for about 100 meters and the bank is to your left.
①
Continue your walking
②
Keep going straight
③
Go along
④
Go on walking
【单选题】
He has left his book here on___, so that you can read it.
①
purpose
②
intention
③
aim
④
meaning
【单选题】
He ____ have left the campus, for I saw in the classroom just a minute ago
①
mustn’t
②
shouldn’t
③
couldn’t
④
oughtn’t
随机题目
【单选题】
关于前牙贴面唇面的常规牙体预备量，下列说法错误的是()
①
切端约为1.0mm
②
唇面颈1/3处约为0.5mm
③
唇面中1/3处约为0.7mm
④
唇面切1/3处约为0.9mm
⑤
唇面龈边缘为宽0.8mm的肩台
【单选题】
前牙贴面牙体预备的4个基本步骤依次是()
①
唇面预备、切端预备、邻面预备、精修磨光
②
切端预备、唇面预备、边缘预备、精修磨光
③
切端预备、唇面预备、邻面预备、边缘预备
④
切端预备、唇面预备、邻面扩展、精修磨光
⑤
切端预备、唇面预备、打开邻面、精修磨光
【单选题】
贴面等微创修复体的牙体预备应尽可能局限于牙釉质内，下列说法错误的是()
①
釉质可为贴面提供固位和抗力支持
②
粘接界面应有50%以上的牙釉质
③
粘接界面边缘应有70%以上位于釉质内
④
粘接界面牙本质少于60%即可
⑤
粘接界面牙本质应为浅层健康牙本质
【单选题】
以下哪项不符合下颌磨牙牙合贴面的牙体预备要求（）
①
牙合面预备时在舌尖制备功能尖斜面
②
舌尖形成0.5mm的无角肩台
③
颊尖形成1.0mm内线角圆钝的肩台或深无角肩台
④
牙合面颊尖牙体预备量1.5mm，舌尖牙体预备量1.0mm
⑤
邻面形成0.5-1.0mm内线角圆钝的肩台或无角肩台
【单选题】
以下哪种情况符合后牙牙合贴面的适应证（）
①
已完善根管治疗的磨牙I类洞
②
已完善根管治疗的磨牙II类洞
③
后牙牙合面表浅性硬组织缺损
④
活髓磨牙I类洞
⑤
活髓磨牙II类洞
【单选题】
以下哪种边缘形态不适用于玻璃陶瓷制作的后牙牙合贴面（）
①
1.0mm内线角圆钝的肩台
②
0.5mm的无角肩台
③
1.0mm的深无角肩台
④
刃状边缘
⑤
0.8mm的深无角肩台