测定酸性粘土试样中[tex=2.071x1.214]kNnAPesKMqw+PPjqJQqvYQ==[/tex]的含量,宜采用的分解试剂( )[br][/br]
未知类型:{'options': ['[tex=6.071x1.214]4pYEdQ6bu7+lUbnJYqE9evM/RqnU1bP/YB4cw+g+pVdNZbo9jUKoPwqkbGq+5RHc[/tex]', '[tex=5.429x1.286]6tH+OU0HVMUixcm6AkBB+w==[/tex]', '[tex=4.0x1.143]cEXXGAQ+rfficNmjNwOFiMAU+SQgw2rbF2hctIaUVyU=[/tex]', '[tex=6.714x1.214]xzStSnDiB7BCBhvHTPhordTqRRE9NSNSKCN2MKed7w91GPIfmcod++mPsGZo3cEB[/tex]'], 'type': 102}
未知类型:{'options': ['[tex=6.071x1.214]4pYEdQ6bu7+lUbnJYqE9evM/RqnU1bP/YB4cw+g+pVdNZbo9jUKoPwqkbGq+5RHc[/tex]', '[tex=5.429x1.286]6tH+OU0HVMUixcm6AkBB+w==[/tex]', '[tex=4.0x1.143]cEXXGAQ+rfficNmjNwOFiMAU+SQgw2rbF2hctIaUVyU=[/tex]', '[tex=6.714x1.214]xzStSnDiB7BCBhvHTPhordTqRRE9NSNSKCN2MKed7w91GPIfmcod++mPsGZo3cEB[/tex]'], 'type': 102}
举一反三
- 能产生正弦波振荡的必要条件是() [br][/br] 未知类型:{'options': ['[tex=4.071x1.5]ZHMXiER8ZaDxxsVT/bVH3+lsP/UBZFV5rlr3gMkTWAo=[/tex]', '[tex=3.786x1.5]X/dAPQG629Xxhzt6x5zsxXQwhBAICzqMGDmsrceVcnk=[/tex]', '[tex=3.786x1.5]X/dAPQG629Xxhzt6x5zsxUy/rK6N2R3d20utEgygqgQ=[/tex]', '[tex=6.214x1.5]4p1ea1IYayd4Z8XNUjoBPD5L7ZWp5rKrXhXmNG5YIgo=[/tex]'], 'type': 102}
- [tex=1.857x1.0]1FVfIOJf7ISeQGf+8HT7Iw==[/tex]尿素的合成需消耗[tex=2.214x1.286]iLZ8dFzDhyDszs4Q6Iairw==[/tex]摩尔数是 未知类型:{'options': ['2', '3', '4', '5', '6'], 'type': 102}
- 判断半径大小并说明原因:(1)[tex=1.071x1.0]ZIxpATrL2EWTpYe3CKPlpg==[/tex]与 [tex=1.357x1.0]LO7mudz7++HOXb8YDQ1UtQ==[/tex](2) [tex=1.286x1.0]nOvFdt4hpTubfX23eRvSvg==[/tex]与[tex=1.071x1.0]Kr2c9X1cZ4El5JSNMoM0/w==[/tex](3) [tex=1.214x1.0]Q1mlMfKWwfAuQJLgzt2cVQ==[/tex]与[tex=1.357x1.0]ovKrdUm5wnQSTfl9He3wzA==[/tex](4)[tex=1.143x1.0]8nY7k4VEnlDIEx7o05iMhQ==[/tex]与[tex=1.357x1.214]in11+JirBe0MeyXDnVwAww==[/tex](5)[tex=1.643x1.214]cIgqspnlK9Ra13rNdyZhHQ==[/tex]与[tex=0.643x1.0]jLbabU9pW65GUKemsNBJWw==[/tex](6)[tex=1.929x1.143]CtrLAecFBVyCnMYbqB02Ag==[/tex]与[tex=2.0x1.214]2cEIifUWf5oYRzhjCpTV6A==[/tex](7)[tex=2.214x1.214]OdTls2gllRl/Z1zy0+35/g==[/tex]与[tex=2.071x1.214]YDXlUgl4Yvd6QFjcd0Ns2Q==[/tex](8)[tex=2.071x1.214]QvCjZKA7OQkNYccCl0MVgQ==[/tex]与[tex=1.929x1.214]GDfkuEdqfBLP2oRgr+Wojw==[/tex]
- 假设所有变量均为整型, 则表达式[tex=10.571x1.357]LwbIklUNi3bG92VfuhR/2s2h8bPim4KlwMHG5pBJ+3PKMuWS/4OGtcmSMjC2vxzVyrIKC8OVgBRFsqcS0s1A1u2X9g+VlWD58VLIpTfy7/0=[/tex]后[tex=0.571x0.786]FLCxr+5eRIYnIT0kyTRrXg==[/tex]的值为 未知类型:{'options': ['7', '8', '6', '2'], 'type': 102}
- 6个顶点11条边的所有非同构的连通的简单非平面图有[tex=2.143x2.429]iP+B62/T05A6ZTM0eeaWiQ==[/tex]个,其中有[tex=2.143x2.429]ndZSw3zT0QTOVLVdoUto1Q==[/tex]个含子图[tex=1.786x1.286]J+vVZa2YaMpc6mJBbqVvWw==[/tex],有[tex=2.143x2.429]lmhx48evnQMhi03NovPXig==[/tex]个含与[tex=1.214x1.214]kFXZ1uR8GjycbJx+Ts2kyQ==[/tex]同胚的子图。供选择的答案[tex=3.071x1.214]3KinXFh3SXhZ7nIe1y9KEV6aadxhhJWeEy6Dij1iObdMUZkY6ZA5J2dVVjPSuhEf[/tex]:(1) 1 ;(2) 2 ;(3) 3 ; (4) 4 ;(5) 5 ;(6) 6 ; (7) 7 ; (8) 8 。