关于血栓性外痔的说法错误的是（） A.48小时内肛门疼痛最为剧烈 B.腹内压增高时可

The nurse instructs the female client concerning hormone replacement therapy for menopausal symptoms. Which of the following points should the nurse include in the client’s teaching plan

A. Estrogen therapy eliminates the need for supplemental calcium intake.
B. Estrogen therapy can reduce the risk of menopausal bone loss.
C. The risk of uterine cancer is decreased after menopause.
D. Smoking is associated with a later onset of menopaus

纳米技术是21世纪的新兴技术，纳米是一个长度单位，1纳米等于1米的10亿分之一，关系式是1纳米=10^﹣n米，n是 [ ]

A．10

B．9

C．8

D．﹣10

下列属于“战国七雄”的诸侯国有（）。

A.楚

B.晋

C.秦

D.燕

E.宋

下列不属于裸子植物的是[ ]

A．龙柏                              

B．侧柏        

C．卷柏                               

D．圆柏

凸阵扫描探头，临床常用于何部位的检查（）

A.腹部

B. * *

C.睾丸

D.甲状腺

E.头颅