下列图标表示（） A.发动机 B.水泥三联杆 C.发电厂

使君子的功效是（）

A.杀虫疗癣

B.杀虫消积

C.杀虫，润肺止咳

D.杀虫消积，行气利水

E.杀虫消积，润肠通便

运腕

一个圆形花坛的半径是30m，祝爷爷绕花坛走3圈，他走了______米，这个花坛的占地面积是______m²．

Darcy Grafton, CFA, purchases a large block of stock on behalf of specific accounts she managed. The stock realized a significant gain in value before the close of business; so Grafton reviewed her accounts again to determine where the block shares should be allocated. According to the Standards of Practice Handbook, Grafton’s most appropriate action is to allocate the shares to:()

A．all accounts equally.

B．all accounts for which she has discretionary authority.

C．only those accounts for which the block shares were originally intended.

关于头颈肿瘤治疗的描述正确的是（）。

A.姑息性切除术也应力争将肿瘤肉眼切除干净

B.临床检查和影像学很典型的肿瘤可以不做病理学检查

C.根治性肿瘤切除术可以没有安全界

D.近期生长迅速的肿瘤尽快直接手术切除，不应先放疗或化疗

E.病变广泛、估计不能治愈的肿瘤，为了延长生命或减轻痛苦也要实施姑息性切除术