给下面多音字注音并组词。
①颤( )_______ ( )_______
②背( )_______ ( )_______
①chàn 颤抖 zhàn 战栗
②bēi 背负 bèi 背后
In order to protest against America’s failure to join England in WWI, () became a naturalized British citizen in 1915.
A. William Faulkner
B. Henry James
C. Earnest Hemingway
D. Ezra Pound
适宜采用钳刮术终止妊娠的是()
A.妊娠49天以内者
B.妊娠10周以内者
C.妊娠11~14周者
D.妊娠13~28周者
E.妊娠28~37周者