题目内容

In Paragraphs 5 and 6, the author shows his concern that

A. principles are hard to be clearly expressed.
B. the court is giving police less room for action.
C. phones are used to store sensitive information.
D. citizens" privacy is not effectively protected.

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CRH2型动车组控制传输部为双重系统，确保系统冗余性。（）

早期胃癌是

A. 只限于粘膜内癌
B. 未侵及肌层的癌
C. 直径在2cm以内的癌
D. 无淋巴结转移的癌
E. 尚未浸润至浆膜层的癌

______ is a high layer of cloud in the form. of small flakes or cauliflower，white in colour with no dark shadows in between.

A. cirrostratus
B. cirrus
C. stratus
D. altostratus

测定蜂王浆灰分时，马弗炉控制的温度为()。

A. 400～500℃
B. 500～600℃
C. 700～800℃
D. 800℃以上