单选

近 日,天 文学家在研究银河系XB233行 星的图像时发现 ,该行星陨坑内的远古土壤存在着类似地 球土壤裂纹剖面的痕迹。 在地球上,这样的土壤只分布在南极干燥谷。 据此,天文学家认为,在远古时期,XB233行星上可能存在生命。
以下哪项如果为真,最能削弱上述结论? ( )

A 土壤裂纹剖面中的纹路是被微生物加工过的痕迹,地球土壤也存在这种现象
B 这 些土壤样本仅表 明 XB233 在 远古时期可能曾是温暖潮湿的,并 不能说 明有生物存在
C 根据物质元素分析结果,XB233 陨坑土壤的成分构成比例与地球土壤的状况较为接近
D 南 极干燥谷土壤具有多孔中空结构,同时硫酸盐浓度较高,但 XB233行 星上的土壤并不是这样的

正确答案
B
查看解析

相关试题

单选
The fact that they have changed, and are changing their lives,( )an encouragemen
A were B was C are D is
查看
单选
The depattment of agicullure has promised to help facilitate the entry of Philip
A has been closed B had closed C had been closed D has closed
查看
单选
The social media companies have largely( ) the characteristics of a public squar
A take in B take up C take on D take over
查看
单选
The test flight also gathered ( )inside the cabin during the flight, including t
A infrastructure B measurements C disclosures D processes
查看
单选
Many Chinese companies can count on govemment subsidies to tide them over when t
A seek assistance B make a change C meet the demands D tum a profit
查看
单选
6. Nowadays, people with above average credit scores are unlikely to () their mo
A give up B defer to C pay off D default on
查看
单选
I think the updated law allows the employer to actually gauge the salary on a wo
A compare B comparing C to compare D being compared
查看
单选
Despite the rosy forecast, more analysts are pointing to worrying signs that wit
A contraction B consolidation C concession D recession
查看
单选
Presidents ( ) when economic numbers are good and they point out that we all bla
A take the blame B take for granted C take an oath D. take credit
查看
单选
2019年3月14日,国家市场监管总局近日制定下发《关于整合建设( )行政执法体系更好服务市场监管执法的意见》,明确要求今年12月底前,整合原有投诉举报五条热线
A 12331;12331 B 12365;12365 C 12358;12358 D 12315;12315
查看
刷题小程序
(银行招聘) 职业能力测验题库小程序