若孙玉打算通过投资定期定投平衡性基金的方式筹备儿子中学的学费,年平均回报6%。那么从孙玉的儿子上小学一年级开始计算,在儿子读小学的六年时间里,孙玉每年应划拨()元用于基金投资。
A. 43009
B. 43518
C. 50000
D. 83334
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患者,男性,67岁,以间歇性无痛性全程肉眼血尿1周来院就诊,经B超及膀胱镜检查证实,膀胱右侧壁有一个直径2.5cm大小的占位病变,收入院诊治。
首先考虑的诊断是
A. 膀胱癌
B. 膀胱肉瘤
C. 膀胱憩室
D. 膀胱滤泡
E. 输尿管口囊肿
去龋过程中病人很敏感,并见露髓点,窝洞中尚有腐质。治疗最好选用
A. 干髓术
B. 盖髓治疗
C. 安抚治疗
D. 活髓切断术
E. 根管治疗
What is the conversation mainly about?
A. The possible existence of life on other planets.
B. Methods for building powerful new telescopes.
C. A technical problem that astronomers can't solve.
D. The discovery of planets orbiting distant stars.
When will the vote begin?
A. On 1 January.
B. On 5 March.
C. On 22 January.
D. On 5 January.