问题
单项选择题 A3/A4型题
男，60岁。右下牙龈溃疡2个月。体检见右下牙龈有-3cm×3cm溃疡，溃疡所在区牙略松动，右颈上部触及2.5cm×2.0cm淋巴结1个，质中偏硬，不活动，未发现远处转移。临床考虑为牙龈癌。
原发灶还应做的检查首先是（）。
A.CT
B.B超
C.MRI
D.X线片
E.核素扫描
答案
参考答案：D
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男，60岁。右下牙龈溃疡2个月。体检见右下牙龈有-3cm×3cm溃疡，溃疡所在区牙略松动，右颈上部触及2.5cm×2.0cm淋巴结1个，质中偏硬，不活动，未发现远处转移。临床考虑为牙龈癌。
原发灶还应做的检查首先是（）。
A.CT
B.B超
C.MRI
D.X线片
E.核素扫描
参考答案：D
Passage One
According to the speaker, how does the price of an electronic keyboard compare with the price of a piano
A．The electronic instrument is much more expensive.
B．The electronic instrument is slightly more expensive.
C．The piano is slightly more expensive.
D．The piano is much more expensive.