233

1A=uA/ananas/latex/p/575

易裂变核素有铀-233、铀-235和钚-239，其中人工产生的是（） A: 铀-233和铀-235 B: 铀-233和钚-239 C: 铀-235和钚-239

按诗词“三人同行七十稀，五树梅花廿一枝，七子团圆月正半”解同余方程组X≡2mod3，X≡3mod5，X≡2mod7的解为（） A: 23 B: 133 C: 233 D: 223

目前用于核能发电的最重要裂变材料是 A: 铀233 B: 铀235 C: 铀238 D: 钚233

4.若有压圆管内水流为层流运动，则必有( )。 A: 9v/πdμ＜575 B: 9v/πdμ＜2300 C: 9v/πdv＜575 D: 9v/πdv＜2300

1，2，6，15，40，104，（）。 A: 233 B: 256 C: 273 D: 296

《放射性物质安全运输规程》规定：未受辐照的钍是指每克钍-232中（）g的钍。 A: 铀-233含量不超过10^-7 B: 铀-233含量不超过10^-9 C: 钍-233含量不超过10^-7 D: 钍-233含量不超过10^-9

VDR/S-VDR安装并经过正确配置后，需重新_____。575

Alana is not registered for sales tax purpose. She has recently received an invoice for goods for resale which cost $500 before sales tax, which is levied at 15%. The total value was therefore $575. What is the correct entry to be made in Alana's general ledger in respect of the invoice? A: Dr Purchases $500, Dr Sales tax $75, Cr Payables $575 B: Dr Purchases $575, Cr Sales tax $75, Cr Payables $500 C: Dr Purchases $500, Cr Payables $500 D: Dr Purchases $575, Cr Payables $575