The phrase "it is quite puzzling" is correct and usable in written English. This phrase can be used to describe something that is puzzling or confusing. For example: "The mystery surrounding the disappearance of the missing artifacts is quite puzzling.".
It is quite puzzling that the Justice Department, at some point during the 1980's, began to read the statute as limiting the Department's ability to obtain FISA orders if it intended to prosecute the targeted agents-even for foreign intelligence crimes.
It is quite puzzling as the available literature in animal and human trials is torn between interest and futility for the diagnosis of bowel ischemia [14 17].
It is quite puzzling that, in contrast to other inflammatory situations, evidence for acquisition of immunosuppressive functions by Th17 cells converting towards Treg lineage in tumor context is rather limited.
"It's quite puzzling to have such an improvement in the labor market considering that the economy is in recession and labor productivity is so low," said Blerina Uruci, an economist with Barclays in London.
It was quite puzzling why there were so many mRNA species detected in phloem sap, but only few known cases of endogenous mRNAs were reported to have long distance functions [ 23, 24].
The inclusion of DNA methylation in this list is quite puzzling.
The observation regarding the seasonal variation of the time of the Sq peak over Maitri (Fig. 4) is quite puzzling.
Awesome tool! I started using it one year ago and I never had to look for another app
Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia