[单选题] 建设行政主管部门在审核发放( )时,应当对建设工程是否有安全施工措施进行审查,对没有安全施工措施的,不得颁发。
A.生产许可证
B. 质量许可证
C. 产品合格证
D. 施工许可证

宫颈癌MRI扫描T₂WI像上阴道壁上2/3出现异常高信号，但未见旁或盆壁浸润征象，分期应为（）
 

国家税务总局于2013年3月正式公布《网络发票管理办法》，该办法的实施有望打破网购不开发票不纳税的“潜规则”。这有助于（）
①根除偷税、骗税等违法现象②加强对税收的监管
③为实体店和网店营造公平的竞争环境④依法保护纳税人的合法权益

When you enter the gate of Disneyland you will see a sign hanging on the wall. There are some regulations you have to obey while enjoying the park:
We request that no food or beverages (饮料) be brought in Disneyland. A picnic area is located west of the main entrance for your convenience. Also, for the comfort of those around you, we request that there be no flash photography, eating or drinking in a pleasure ground. Guests with very young children may take turns enjoying these places.
As long as you follow the rules, you will have a very good time there.

All over Europe, and in North America, there’re lakes and forests which are dead or (71) and the (72) is thought to be acid rain. What is acid rain Mr. Justin Cook, a scientist, explains: "All fossil fuels, (矿物燃料)，that (73) oil, coal and gas, contain sulphur. When these are burnt, for example (74) motor vehicles, they form sulphuric acid (硫酸)This (75) UP into the air, and soon it falls back to (76) , into lakes and (77) trees in forests." This can cause many local problems. 78 a result, lakes become acidic, fish disappear and trees are killed. The pollution is carried great distances by the wind, so sulphuric acid (79) in Britain can travel as far as Scandinavia (斯堪的纳维亚). Czech is one of the countries with the most acid rains and large areas of (80) consist only (81) dead trees.
Is there (82) that can be done about acid rain Mr. cook says: "The rain (83) A. if
B. when
C. until
D. unless