正常妊娠6~8周,其血液hCG每日增长速度应()
A.≥100%
B.≥66%
C.≥55%
D.≥22%
E.≥120%
参考答案:B
In order to gain a bigger _______ in the Chinese mobile phone market, Apple Inc. tries its best to make the phones more and more attractive.
A.challenge
B.share
C.balance
D.choice
建设项目竣工环境保护验收时,环境噪声测试一般不少于()天。
A.1
B.2
C.3
D.4