患者，女性，45岁。因反复双侧腮腺区肿大伴口干十余年，肿大与进食有关。临床检查示：轻压双侧腮腺区可见少量半浑浊的液体自腮腺导管口流出，导管口稍红肿；左侧腮腺区可扪及一结节状物，约2cm×3cm大小，表面光滑，活动度一般。
为了协助临床诊断，该患者首先需进行哪些必要的影像学检查（）
A.腮腺X线片
B.腮腺造影侧位片
C.B超
D.头颅侧位片
E.下颌骨后前位片
F.三维螺旋CT
参考答案：B, C
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| A king was old and he knew it was time to choose a new king. He told all the young people in the country, "I'll give 1 of you a seed (种子). Plant it and bring it back one year later. Show me the plant that you bring. 2 I'll choose a new king from you." A boy 3 Ling got a seed, too. He planted it 4 . But the seed doesn't grow at all. A year later, Ling had to take his 5 box to the palace. Others all brought beautiful plants there and Ling felt 6 . The king 7 the palace and look around. When he found there was nothing in Ling's box. The king smiled and said to the others,"One year ago, I gave everyone a seed 8 couldn't grow. But all of you, 9 Ling, have bought me plants and flowers. Ling was the only one with the honesty (诚实) and 10 to bring such a box. So he will be the new king!" | ||||
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