下列平原为世界人口稀少地区的是 A．亚马孙平原．西西伯利亚平原 B．东欧平原．波

Pop star Britney Spears tied the knot with a childhood friend，but their two-day-old marriage was dissolved Monday shortly after Britney filed for an annulment（废除契约／婚约）．She described the marriage as “ a joke that went too far，” said one source closed to Spears．“I don’t even know if she loves him，”the source said．

The 22-year-old diva（most important singer）walked down the aisle at a Las Vegas wedding chapel early Saturday，the reports said，marrying Jason Alexander，also 22，a childhood friend from her hometown of Kentwood，Louisiana whom she had recently begun dating．

Spears wore jeans and a baseball cap，and was escorted（护送）down the aisle by a hotel bellman，according to the People．com．

The two apparently decided to marry while partying at the Palms Casino Hotel Friday night，and did so at the Little White Wedding Chapel in Las Vegas．The honeymoon was spent at the Palms，but the next night Spears was seen dining with a group that did not include the groom at a hotel steakhouse．

Raised in the US south，the pop diva started her career at a television program The Mickey Mouse Club at age 11，becoming a famous teen singer．

All four of her CDs, including most recently November’s “In the Zone，”debuted at number one on the charts．

60．The underlined phrase at the beginning of the passage mean       ．

A．begin to quarrel       B．get married   C．fall in love    D．get divorced

61．The news about Spears’s clothes was most probably taken from a（a n）       ．

A．newspaper         B．broadcast station    C．internet   D．magazine

62．People would have guessed their marriage wouldn’t last long because       ．

A．Spears was seen to have fun without her newly-married groom

B．Spears was a person forever changing her mind

C．Spears had an odd character

D．Spears had such a kind of history before

63．What made Spears most famous in the world is that        ．

A．she got married to a man who she just dated for two days．

B．she got divorced two days after her new marriage．

C．she began to appear on the stage as a teen singer．

D．she made great achievements in singing．

某高强钢丝的代号为JK，那么该钢丝是( )。

A．预应力高强钢丝

B．冷拉预应力高强钢丝

C．矫直回火高强钢丝

D．矫直回火刻痕高强钢丝

政治局1月22日召开会议，决定设立中央军民融合发展委员会，由习 * * 任主任，该机构是中央层面军民融合发展重大问题的决策和议事协调机构，统一领导军民融合深度发展，向（），中央政治局常委会负责。

A.中央政治局

B.国务院

C.全国人大

D.全国政协

麦芽糖酶能水解的是( )

A．α-果糖苷键

B．α-葡萄糖苷键

C．β-果糖苷键

D．β-葡萄糖苷键

E．α-麦芽糖苷键