第二章单元测试
- Hepatic hemangiomas are composed of small blood vessels, so blood flow is abundant in color Doppler mode.（ ）
- Contrast-enhanced ultrasound examinations hold substantial diagnostic potency for differential diagnosis. （ ）
- Anencephaly is a fatal malformation. （ ）
- Prenatal ultrasound should detect anencephaly after 20 weeks gestation. （ ）
- Severe open spina bifida should be detected by prenatal ultrasound. （ ）
A:对 B:错
答案:错
A:对 B:错
答案:对
A:错 B:对
答案:对
A:错 B:对
答案:对
A:对 B:错
答案:对
