1. interface A { public void aMethod(); } 2. interface B { public void bMethod(); } 3. interface C extends A,B { public void cMethod(); } 4. class D implements B { 5. public void bMethod() { } 6. } 7. class E extends D implements C { 8. public void aMethod() { } 9. public void bMethod() { } 10. public void cMethod() { } 11. } What is the result?()
A. Compilation fails because of an error in line 3.
B. Compilation fails because of an error in line 7.
Compilation fails because of an error in line 9.
D. If you define D e = new E(), then e.bMethod() invokes the version of bMethod()defined in Line 5.
E. If you define D e = (D)(new E()),then e.bMethod() invokes the version of bMethod() defined in Line 5.
F. If you define D e = (D)(new E()), then e.bMethod() invokes the version of bMethod() defined in Line 9.
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关于序列拔牙错误的是()
A. 序列拔牙又称为萌出诱导及诱导
B. 系列拔牙的目的是最终减数拔除第一前磨牙
C. 需要长期监控,一般每半年应摄全颌曲面断层片
D. 序列拔牙可能会减少前牙深覆
E. 序列拔牙治疗的病例一般不可能完全自行调整得很理想
一项雌激素与子宫内膜癌关系的配对病例对照研究,共63对。病例组与对照组两组均有雌激素暴露史者27对,两组均无暴露史者4对,暴露组有暴露史而对照组无暴露史者29对,其余为对照组有暴露而病例组无暴露者。OR为()
A. 10.67
B. 9.67
C. 2.24
D. 1.24
E. 4.47