D. It??s because complications in cloned animals are very common.
3. According to the passage，which of the following is the greatest obstacle to humancloning?
A. high risk B. ethical objections
C. concern over safety D. both B & C
4. According to the passage，which of the following statements is NOT true.
A. It??s possible that the Clonaid doesn??t have the advanced technology to clone ahuman.
B. The Clonaid??s claim can??t be true as animals never turn out to be perfectlynormal.
C. The Clonaid hasn??t been able to prove it??s claim.
D. The Clonaid hasn??t arranged independent investigations by well-known experts.
(2)
Microsoft Corp.??s new Windows XP operating system includes several security
feature enhancements ( 增强) . But one of the most significant changes，coming amid
a push for increased security，could mean the beginning of widespread use of
biometric technology ( 生物计量技术) ，according to experts.
Biometric technologies provide identity authentication ( 身份鉴定) through such
methods as fingerprints，retinal ( 视网膜) scans，facial geometry scans and voice
scans. Biometrics provides a higher level of security and authentication than other
methods because no two people are exactly alike. Since the Sept. 11 terrorist attacks
on the U. S. ，the technology has attracted renewed attention.
Most users until now viewed biometrics as costly and difficult to integrate with
legacy applications ( 现有的应用系统程序) . That??s changing，however，and at least
one company will use the mass appeal of Windows XP to help broaden the appeal ofbiometrics.
Microsoft??s support for Fast User Switching，which allows users to switch profiles
without shutting down their applications，has become the centerpiece of a native
fingerprint biometric system from Redwood City，Calif. -based DigitalPersona Inc.
DigitalPersona??s U. are. U Personal fingerprint scanner system is fully integrated
with Windows XP. The personal edition of the system follows the release of the U.
are. U Online and Professional editions，which the company has sold to Los Angelesbased
California Commerce Bank，The Coca Cola??Co. in Atlanta and several medicalservices firms.
“Over the course of hundreds of years，signing a piece of paper has become part
of our lifestyles，” said DigitalPersona CEO Fabio Righi. “ We are trying to
accomplish the same thing with biometrics. Little by little，people will get used to it，”he added.
Some corporate users are already getting used to biometrics. Carlton Musmann,
senior vice president at First Financial Credit Union in West Covina，Calif . ，said his
bank??s 70，000 customers are demanding that it provide a larger number of secure
online banking capabilities. And he said the only cost-efficient technology that??scapable enough is fingerprint biometrics.
“We compared fingerprint technology to retinal scan，and the cost difference was
significant，”said Musmann. The bank now offers 10 Saflink Corp. -based fingerprint
biometric kiosks ( 亭) throughout Northern California.
“You can do anything that you can do through a clerk，”he said.“ Users don??tneed an ATM card，a wallet or anything. ”
Biometrics“ is really all about deploying ( 调动，利用) security and convenience
at the same time”，said Righi.
1. According to the passage，which of the following best explains the relationship ofWindows XP and biometrics?
A. Windows XP is one of the most important technologies on which biometrics isbuilt.
B. Windows XP will help ensure the security of biometric technology.
C. Windows XP will help spur wider application of biometrics.
D. Biometric technology is one of the essential parts of Microsoft??s new WindowsXP operating system.
2. Biometrics provides a higher level of security and authentication than other methodsbecause .
A. each individual is unique
B. it??s costly
C. it??s difficult to integrate with legacy applications
D. users don??t need an ATM card，a wallet or anything
3. In light of ，the demand for biometric technology is growing.
A. the push to increase security
B. the recent terrorist attack
C. both A and B