Why is Australia.s New South Wales called the premier state?（）
A. Because it was the first colony established by Britain in 1788.
Because it is the biggest state in Australia.
C. Because it is the most important state in Australia.
D. Because it has the largest population in Australia.
ZPW-2000A型无绝缘移频自动闭塞系统衰耗盘的型号是（）
A. ZPS
B. ZPSH
C. ZPSHP
D. ZPSHH
下列关于脾淋巴瘤的描述，错误的是（）
A. 是常见的恶性脾脏肿瘤
B. 病理上分为弥漫肿大型、粟粒型、多发结节型和孤立大肿块型四型
CT上有特征性改变
D. 增强扫描有助于发现病灶
E. 合并腹膜后淋巴结肿大有助于诊断
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