女性，68岁。因咳嗽、痰血1个月余就诊。X线检查疑似右下叶中央型肺癌，痰病理细胞阴性

声速失真伪像是由于实际声速与超声仪设值声速差别过大引起，表现为图像失真、测量误差。下列最显著的是（）。

A.肝脏、脾脏超声测量

B.巨大脓肿或囊肿超声显示和测量

C.巨大脂肪瘤的超声显示和测量

D.巨大子宫瘤超声显示和测量

E.子宫大小的超声显示和测量

拔牙过程中最常使用的力为

A．摇动力

B．扭转力

C．楔力

D．杠杆力

E．轮轴力

People often hear each others' voices without ever seeing the faces they belong to. "Nowadays we are talking away on the phone without meeting people," says Seung-Jae Moon. And from business conference calls to chat lines, people often imagine they would recognize the speaker if they saw him or her. Seung-Jae Moon, a linguist of Korea found that, under certain conditions, they're actually right.

Moon decided to see just how close those mental pictures match up with reality and if there was any relation to how people speak rather than what they are saying. He recorded 16 Koreans, half men and half women, reading the same passage, and took a full-body photo and head shot of each speaker. Then he played the tapes for 361 Koreans and 173 Americans who did not speak Korean and asked his subjects to match up voice and picture. The Korean participants viewing full-body photos were quite perceptive. A majority linked 6 of the 8 women to the correct voice and did so for 5 of the 8 men. With the Korean group shown only faces, accuracy plummeted, but more than 20 percent of the subjects selected the same incorrect picture. The Americans showed no accuracy in matching the foreign voices to photos, but they too were consistent in their errors. That disconnection reveals conflicting ideas of physical and vocal beauty. Moon asked people to pick a favorite face and voice. Seventy percent of the Koreans picked one voice, but there was no agreement on a face. Americans didn' t agree on either count. And over 65 percent of both Koreans and Americans did not match their favorite face with their favorite voice.

Moon hopes to use software to break voices into components like pitch and hoarseness to narrow down which elements trigger certain mental pictures. "If we can map which characteristics of the voice triggers what kind of linage, and it doesn't matter whether that image is the right or wrong one of the actual speaker, then we can create an image through voice,' he says. That capacity could help to create computer-synthesized voices tailored to conjure up specific associations — audio books for children that inspire motherly visages, or warning alerts that bring to mind a stern police officer.

小题1:People often think that they would ______ the speaker when they saw the speaker.

A．understand

B．recognize

C．like

D．surprise小题2:Moon decided to do the experiment to ______.

A．see how close mental pictures match up with reality

B．how people speak

C．see if there was any relation to how people speak rather than what they are saying

D．both A and C小题3:He asked ______ Korean women to speak and recorded their voices.

A．12

B．16

C．8

D．10小题4:______ were more perceptive in recognizing full-body photos.

A．The Koreans

B．The American women

C．The Korean women

D．The Americans小题5:______ percent of Koreans and Americans matched their favorite face with their favorite voice.

A．Less than 65

B．Less than 35

C．Over 65

D．About 20

19世纪末20世纪初，中国女性“足的革命”推动了“鞋的革命”，妇女不再以穿自己纳的鞋为满足，喜欢穿花样繁多、美观大方的欧式鞋。下图是民国时期非常流行的一款国产欧式女鞋广告。以下对民国时期国产“欧式”女鞋流行原因的分析，正确的是

①西方生活观念在国人中普遍确立②不缠足运动使妇女从陋习中解放出来

③民族工业的发展④“抵制洋货、爱用国货”运动的推动

A．①②④

B．①②③④

C．②③④

D．①②③

Ventilation /perfusion ratio: