在□ABCD中,对角线AC、BD相交于点O,AC=20,BD=16,则AD的取值

题型:填空题

问题:

ABCD中,对角线AC、BD相交于点O,AC=20,BD=16,则AD的取值范围是(    ).

考点:平行四边形的性质
题型:填空题

子宫内膜癌患者,宫腔长8cm,宫颈无癌细胞浸润,腹腔冲洗液无癌细胞,应选用

A.单纯放疗

B.手术加化疗

C.单纯手术

D.单纯孕激素治疗

E.放疗加手术

题型:填空题

阅读下面的短文,然后将划线部分的句子译成汉语或英语。

Mr. and Mrs. Smith come from Sydney(悉尼).小题1:They teach English in a school in China. They like their work. 小题2:They have a son Jim and a daughter Sue. They are all in China now. Mr. Smith can speak Chinese. He likes swimming and reading. Mrs. Smith likes swimming in the afternoon and cooking(做饭).小题3: Jim 和Sue喜欢打网球。They often play tennis with Chinese boys and girls.

Jim’s uncle, Mark, works on a farm(农场)near Sydney. 小题4:He likes swimming, too. He wants to work in China. 小题5:但是他不会说中文。 So he is still(仍然) there and goes to Chinese classes every week.

题型:填空题

阀体对称,流体流向可任意,阀芯旋转角从0°到90°可单向旋转,也可双向旋转是()控制阀。

A、O型球阀

B、隔膜阀

C、闸阀

D、角阀

题型:填空题

在《商业银行风险监管核心指标》中,流动性比率为流动性资产余额与流动性负债余额之比,不得低于()。

A.30% 

B.25% 

C.50% 

D.75%

题型:填空题

人类免疫缺陷病毒的释放方式是()。

A.破胞散出

B.细胞融合传递

C.细胞间桥传递

D.出芽

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